Ben, Kevin, and LaGrange find themselves stuck outside of time after the latter hijacks a supersonic train, forcing the trio to team up and slow down.[ATV 1][revised]
Plot[]
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The episode starts with the Tennysons visiting the Sonitrain, which Gwen states that it was very nice for Helen to donate a portion of her Sonitrain to Max's alma mater. Ben, however, playing on his tablet, doesn't want to look at the train, instead declaring the day a "Ben Day". Gwen takes the tablet telling him that he's played the game a bunch of times, and Ben states that he has seen the train already on top of saving it from Lord Decibel. Gwen hands Ben back the tablet, but right when she hands it to him, Kevin runs in and takes it. He stands there holding the tablet up in the air confusing Ben, who questions what he's doing only for Kevin to slam the tablet on the ground, and run off into the train. Kevin yells out that he’s hijacking the train and Gwen tells Ben to go after him, but he already knows to do so, though annoyed at the fact that he does this so many times. Gwen runs off to Max telling him that Kevin is trying to hijack the train, however Max tells her not to worry since Helen made sure that it was decommissioned.
LaGrange's car is stolen
Inside the train, Ben tells Kevin that he has to get back to his Ben Day, and they should get this over with. Kevin questions if he wants to know why he's doing this, but Ben states he doesn't. Regardless, Kevin explains anyway, insisting he’ll listen. He explains that no one was recognizing his "genius" pranks, and he plans to hijack the train then defeat Ben so no-one will ever forget his name. Ben decides since he just wants attention, he doesn't have to fight him, walking off as Kevin follows him, telling him not to ignore him. Kevin prepares to transform to start a fight, however laughter is heard from inside the train. LaGrange shows up greeting the two boys, and claims that he plans to hijack the train. He asks if they want to know why, but Ben once again denies to which LaGrange also states that he'll listen anyway. LaGrange explains that his car was stolen followed by his bike and pride, so he plans to regain it by becoming the fastest any man has ever gone.
Jetray and Skunkmoth try to chase the Sonitrain
Kevin questions how he plans on doing that, when the controls are defunct. LaGrange pulls out a device, that he plans to get the train moving with, thought to no result. Kevin states that he's the one supposed to be hijacking that ride and transforms into Skunkmoth. He states he has the perfect tool to get the train moving with LaGrange asking what, to which Skunkmoth slams his face on the controls. Ben transforms into Jetray, and shoots his neuroshock blasts at the two. They both dodge and it hits the controls, and starts up the train. Skunkmoth and Jetray argue over the fact that the train is started off, LaGrange seizes the opportunity and begins moving the train as Jetray and Skunkmoth go flying outside the train. Kevin gets angered since he was supposed to hijack the train whilst LaGrange puts the train into high gear causing the train to heavily accelerate, with Jetray and Skunkmoth begins pushing it faster. The train then travels so fast that the time around it froze. As the train continues its heightened acceleration, Jetray and Skunkmoth both bail from the train, followed by LaGrange who states that it's too fast even for him.
The three gentlemen notices how everything around them is frozen. LaGrange explains that they're moving so fast, everything appears frozen. Kevin leaves off to go pull pranks, and Ben leaves to do his own thing as well. LaGrange sobs, questioning if he conquered speed, or has it conquered him. Ben runs towards a frozen Gwen, and he takes her tablet to play it. Kevin engages in various mischief: Running to someone's doorbell and ringing it as a prank, going to a restaurant and shoves his face in some food, and conducting a bank heist. Though all lead to no responses, much to his disappointment LaGrange arrives at where Vin Ethanol is working, and hops in his arms. He questions what he should do and then decides facie and conquer his fears head on.
Ben sits on a street corner, tired of being frozen in time. Shortly after, Kevin runs into him, who has also become tired and the two set out to find LaGrange. After finding him, Kevin questions what he's thinking about, to which LaGrange answers that he has begin pondering his existence. Ben interjects and states they have to come up with a plan to undo this predicament. Kevin replies saying that things were going great, until LaGrange got in the way, to which LaGrange tells him that he stole the train for the glory of being the fastest, and that Kevin only wanted attention from Gwen, to which he denies.
LaGrange tells him that love is but a hollow promise, and is why he only enjoys the thrill of the race. Kevin accuses him of going so fast he scared himself, he then pushes him and LaGrange states that he had spoke to the universe and Vin Ethanol. Though Kevin objects saying that LaGrange is the one that got them all stuck here in the first place. Kevin then transforms into Skunkmoth and the two begin fighting each other. As the fight unfolds, Ben thinks for a moment and comes up with an idea to fix the time freeze by suggesting that they need to put the train in reverse.
The trio discuss when the train is due to loop back around to them, with Ben transforming into Humungousaur to stop the Sonitrain. Once he had done so, he detransforms and the three then wait for him to time back in, to transform into XLR8 and appliy the Omni-Kix for further speed. LaGrange signals the two boys to begin pushing the train, with XLR8 activating his back-booster to allow the Sonitrain to go even faster. LaGrange struggles to keep the train steady, but they eventually manage to pull it off. The three depart, and LaGrange is arrested. Gwen questions why Ben and Kevin aren't going to mess with each other, Ben refuses and says the Sonitrain was it's own adventure. Gwen questions what he means for her they were only briefly gone, but Ben states it felt like an eternity, and now plans to spend time with his family. Gwen is confused and tells Ben to play videogames, however Ben states that he has beaten them all and yells out to the universe on his meaning.
Kevin: Why are there turntables? Ben: Kevin! Let's get this over with, gotta get back to my me time. Kevin: Wait! Don't you want to know why I'm doing this? Ben: No. Kevin: Well, you're going to listen anyways. The last few weeks I've had a huge problem! I've been pulling pranks as usual. Bashmouth (Flashback): (Howls, panting). Two girls: Awww! Kevin: No one was recognizing my genius! Quad Smack (flashback): (Throws statue at building). How ya like me now?! Guy: Aww, thanks, bud! That building was set for demolition. Quad Smack: Sighs. Kevin: So when I heard about this train, I knew I could pull off the biggest prank ever! By hijacking it, and kicking your butt, no one will ever forget my name!
”
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Ben: Wait, you just want attention? Kevin: Yes! Ben: Oh, then I guess I don't have to fight ya! Kevin: Hey! Don't ignore me! Ben: Sounds like you need some "me time" too! Kevin: Fine! I'll just force a rumble! (Prepares to hit his watch). Lagrange: (Evil Laughter). Hello, Tennyson and Grumpy Boy! Ho, ho, ho, ho! I plan on Hijacking this train, and nobody can stop me! I only have one more speed record to beat, and this train is the key!
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Ben: Oh, come on! Is there anyone else who wants to steal this train? LaGrange: Would you like to know why I had to resort to a non-wheeled vehicle? Ben: No. Lagrange: Well, you're going to listen anyways! First, someone stole my beautiful car! LaGrange (Flashback): What are you doing? Get back here! LaGrange: Then it was my bike! LaGrange (Flashback): What, again? Seriously? LaGrange: And then...my pride! So, I plan to re-gain it, by going the fastest any man has ever gone before!
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LaGrange: Look! Gentlemen, do you not see what has happened? We've gone so fast, we've out run time! Look around you, everyone is completely still. But it is only because of how fast we are moving! Jetray: Yea? Well, thanks to you, the Sonitrain is long gone! Skunkmoth: In that case, see ya, losers! The Levin annual prank spree starts now! (Laughs). LaGrange: I have gone so fast I have broken time, and it frightens me. (sobbing). Jetray: Uhh, this is weird... I'm gonna go. LaGrange: Speak to me, universe! Have I conquered speed, or has it conquered me? What is my meaning now?
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Kevin: Hello! Answer the door! Oh yeah, everyone is frozen in time. Whatever.
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LaGrange: What does it all mean, Vin? I tasted ultimate speed! And it scared me. Scared me because whatever I was looking for wasn't there...Maybe I haven't been chasing ultimate speed after all. Maybe I've been running from something! Oh, Vin, you were the only one who really understood me. What's that? I should face my fears head-on and conquer them? Oh uh, but, what if I should fail?
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Gwen: Ben, aren't you and Kevin going to mess with each other? Ben: Nah, Been there and done that, the Sonitrain turned out to be its own adventure. Gwen: What? You guys were gone for, like, 5 seconds! Ben: Well, Gwen, it felt like an eternity. Besides, now I can spend time with family right, Cuz? Gwen: Quit being a weirdo! Go play a video game or something! Ben: But I beat all my games, Gwen, all of 'em! Speak to me, Universe, what is my meaning now?!
The title is a reference to Mach numbers, units of measuring speed in terms of the speed of sound (i.e. Mach 2 means something is moving twice as fast as the speed of sound).
Errors[]
In one scene, Kevin's Antitrix was on his right wrist instead of his left.
In one scene, when Skunkmoth and Jetray bail from the Sonitrain, Jetray's back had missing stripes.
Jetray and Skunkmoth constantly switched places when holding onto the Sonitrain.
XLR8 is seen again briefly after having gone Omni-Kix prior, before reverting into Ben, marking the first time an alien is seen reverting from their Omni-Kix form.