- [Gwen comes to a sudden realization after knocking down an alien]
- Gwen Tennyson: Wait!
- Kevin Levin: [having been pushed down by Gwen's energy barrier] What's wrong with you? I was just following your lead!
- [Big Chill moves in towards the alien, so Gwen forms another barrier to block him]
- Gwen Tennyson: Get back! Get away from him! It's Ken! It's my brother!
- Omnitrix: Severe genetic damage detected.
- Ben Tennyson: Hello? Uh... Omnitrix, is that you?
- Omnitrix: Genetic code-splicing error. Should we attempt to repair?
- Ben Tennyson: Try to fix Ken? Yeah. Let's do it!
- [grabs the alien xenocite that's grafted itself onto Ken's face]
- Gwen Tennyson: What are you doing?
- Ben Tennyson: I'll let you know as soon as I figure it out.
- Grandpa Max: I'm so proud of you - all of you. You too, Kevin. I've been watching. You've come a long way. Might even earn that Plumber's badge you swiped.
- Grandpa Max: Stop them, Ben. These xenocites must be destroyed. Go!
- [Ben and everyone else leaves. Ben stops at the door and turns around]
- Ben Tennyson: What are YOU gonna do?
- Grandpa Max: What I have to.
- Gwen Tennyson: He... he saved the whole world.
- Ben Tennyson: Yeah, he did... for now, but I don't think those things are giving up anytime soon.
- Gwen Tennyson: What are you saying?
- Ben Tennyson: I'm saying that it's up to someone to protect this planet; and, like it or not, I think it's up to us.
- Grandpa Max: [after vanquishing two aliens in a diner who gave him more than what he asked for] I said... "just coffee."
- [a DNAlien, trying to escape, runs into Kevin while he's turned to iron, knocking himself unconscious]
- Kevin Levin: That's a work-related accident. You can sue.
- Ken Tennyson: [tied to a chair] Who... who ARE you?
- DNAlien Interrogator: I'm glad you asked, Ken. I think the best way to really get to know someone is to walk a mile in their shoes.
- [pulls out a slime-covered, cat-size alien creature from a container]
- Ken Tennyson: What... IS that?
- DNAlien Interrogator: My "shoes."
- Ken Tennyson: AHHHHHHH!
- HighBreed: Max Tennyson. You have been active in your retirement.
- Grandpa Max: Ah, this is really just a hobby now. Man my age has to stay active.
- Ben Tennyson: [after sneaking in unsuccessfully] We are not stealthy.
- Kevin Levin: But we kick much butt.
- Ben Tennyson: [reguarding the Omnitrix after it helps him free Ken of the alien parasite] I'm going to have to get a manual for this thing.