It Was Them

It Was Them is the sixth episode of Ben 10: Omniverse.

Plot
Ben and Rook attempt to stop Dr. Animo and his giant ants.

Major Events

 * Crashhopper gets unlocked and makes his first appearance.
 * Rath and Echo Echo make their Omniverse debut.
 * Dr. Animo makes his Omniverse debut.

Omnitrix Aliens Debuts

 * Diamondhead
 * Echo Echo (Omniverse debut)
 * Rath (Omniverse debut)
 * Crashhopper (first appearance)

Nemetrix Aliens Debuts

 * Slamworm (first appearance)
 * Mucilator (first appearance)

Characters

 * Ben Tennyson (11 and 16 years old)
 * Gwen Tennyson (11 years old)
 * Rook Blonko
 * Blukic
 * Driba

Villains

 * Dr. Animo (first re-appearance Past and Present)
 * Mutant Ants (present)
 * Mutant Frog (flashback)
 * Khyber
 * Khyber's Pet

By Ben

 * Diamondhead (first re-appearance for 16 year old Ben)
 * Echo Echo (first re-appearance; accidental transformation, selected alien was Swampfire)
 * Rath (first re-appearance; accidental transformation, selected alien was Swampfire)
 * Crashhopper (debut)

By Khyber's Pet

 * Slamworm (debut)
 * Mucilator (debut)

Errors

 * In one scene, Echo Echo's right eye doesn't have its black outline.
 * In the scene where Rook splashes goo on Ben's face, the Omnitrix symbol on the Proto-Tool is disproportionate.
 * Articguana is mistakenly in the credits when he didn't appear at all.
 * At the end scene, in one shot in the truck, Ben while talking to Rook didn't wear Omnitrix.
 * In one scene Rath's neck was orange instead of white.

Allusions

 * The title It Was Them is a play on the name of the film "Them" which is about giant ants as well.

Trivia

 * This is the first episode where two Nemetrix aliens are seen.