Ben's trip to Portland with his family is interrupted by the arrival of a brand new, eleventh alien, Gax, as he fights another one of Dr. Animo's monsters. But when the Omnitrix starts behaving strangely, Ben begins to transform from one alien to another without being able to stop.
Cannonbolt fights off one of Dr. Animo's mutations. Cannonbolt tries to escape it, but he gets caught. The Terramite throws him around the place. He manages to knock it over, but the Terramite gets back up, and hits him with a tree. Cannonbolt goes flying across the forest, hitting the Rustbucket. All of a sudden he starts beeping. The Terramite comes by and hits Cannonbolt while he's distracted by the constant beeping. Cannonbolt begins to chase after the creature, but he times out. Gwen looks out the window telling Ben to hurry up and get inside the Rustbucket.
Ben complains saying he hates when the bad guys get away. Max tells him that he did the best that he could, and that's what anyone could ask for. Gwen asks Ben if he's ok, but Ben complains that he doesn't have enough power. The watch begins beeping again. Eventually the Rustbucket begins shaking. They all exit the vehicle, looking up at Mount Megaladon. Gwen tells them that Mount Megaladon is a dormant volcano, and it's been inactive for years. Dr. Animo show's up in his drone, telling the Tennyson trio that it's about to take itself off the inactive list. Animo tells them that he plans for his creature to reactive the volcano, and for the city of Portland to pay him to stop it, or they get to drown in burning lava.
Gwen asks Ben to dial up Overflow. As Ben searches for Overflow, he
notices an alien he's never seen before. Ben questions what alien it is. Max suggest that it might have something to do with the alarm, some kind of warning. Ben activates the alien. After Ben transforms, Gwen asks Ben what he will call this alien. Words whisper in Ben's head, giving him the name Gax. Max tells Ben that he has to stop that creature. Gax eventually makes it up the mountain. On the way he discovers some of his abilities. Gax fights the Terramite, on top of the volcano. Lava starts shooting out while they fight. Gax uses the Terramite's body to plug up some of the holes in the volcano. Gax is thrown off of the Mountain, but he soon catches himself, discovering his new ability, laser eyes. Animo's drone shows up, telling Ben that he has doomed the city, by making the volcano worse.
Back on the ground, Max asks Gwen, who's looking though binoculars, how is Ben doing. She says Ben is doing fine, but the mountain isn't. Gax shoves a giant rock into the volcano, thinking everything is ok. Gwen alerts Max that the Terrimate is about to attack Ben, Max takes Gwen inside the Rustbucket, ready to take off and help. Right before Gax tries to finish the Terramite off, Ben times out. Ben tries to escape, but he has nowhere to run.
Animo tells his creature to destroy Ben, but right before the Terramite attempts to smash Ben, Max drove straight into it, knocking it off of the mountain. Gwen tells Ben he should use another alien, but Ben transforms into Gax anyway. Gax walks off thinking nothing can go wrong, all until the Terramite jumps out and attacks him. Gax throws the creature in the volcano, making things worse. Max drives them to safety, while Gwen tells Ben to get away from the volcano, otherwise he's making things worse. That give Gax the idea that making things worse is exactly what they need. Gax throws the Terramite into the volcano, causing a rockslide. Ben picks up the Rustbucket, and takes it to safety. Animo comes in telling Ben that he hasn't won. Ben shows Animo his victory, and kicks him into the sky.
Later on, Ben is still Gax, carving his name into a rock.
Gwen mentions that it's a little weird that Ben hasn't timed out yet, but Ben thinks it's awesome.
Max brings food out and Gax begins to eat some, but the watch begins beeping again, transforming into Wildvine. Gwen asks shouldn't he be back to Ben now, but Ben likes his transformation into Wildvine. Ben transforms again, transforming him into Grey Matter, then he transforms into Cannonbolt. Max asks if he can stop it, but Ben states that he loves it.
Grandpa Max: "Kids, foods ready. I guess we'll find out whatever Gax is, likes hamburgers, (chuckles). (Ben grabs all three hamburgers with his tentacles). WHOA?! Nice to see you got over your tentacle-phobia" Gax: "Not hard when their attached to (Eats three hamburgers and assemble his tentacles to a arm) the most cool and powerful alien in the whole universe! HAIL TO THE GAX!!"
Naming and Translations
Omni-Truco, Parte 1
Omni-Trick, Part 1
The note of chores Max left Ben in The Filth is seen.
Gax's transformation sequence is a reference to Over Justice's gun morphing in Space Patrol Luluco.[ALM 1]