Kevin, Gwen and Ben destroy a teleporter they were working on and need help repairing it. Kevin suggests Cooper, the young boy who had helped the Tennysons in the past. Unfortunately, Cooper has been kidnapped by the DNAliens.
They track him to Los Soledad, the abandoned military base where Professor Paradox built his time machine. They discover that the Highbreed have erected a cloaking field, built by Cooper over the area, concealing a mysterious arch-like device. They free Cooper and have him destroy the cloaking generator, during which he has visions of the arch acting as a gateway for a fleet of ships and the Earth being destroyed. Despite destroying the generator, the Highbreed manage to repair it and continue their operations unhindered.
(after the teleporter pad was destroyed) Ben: Is everyone alright? Kevin: Forget that, what about the Teleporter Pad! Gwen: Deep down, he's really glad we're okay. Ben: At least we don't have to worry about any "banana-fly" monsters.
Kevin: So, Gwen... happy to see your ex? Gwen: Zip it! (to Ben) You just had to mention the crush? Ben: Probably not.
Cooper:(to Gwen) The way you came storming in there, like how Princess Elena rescued me last week from the Caverns of Unforgiving Dismay! Gwen: Excuse me? Cooper: In Nations of Conquest, the M.M.O.R.P.G I play. Gwen: Excuse me? Cooper: Massive multiplayer online role-playing game. Kevin: Yeah Gwen, and your power is being plus-3 nerd bait.
Gwen: Ben? Are you hiding? Ben: No. It’s just, if a fly lands on that banana when it teleports and it rematerializes as a deathly banana fly monster. I don't wanna be standing right next to it, is all.
Naming and Translations
Un Viejo Conocido
An Old Acquaintance
When Kevin said to Ben "You used to turn into one of those (insects)", he was referring to Stinkfly.
Ben's concerns about a "banana fly monster" in the beginning of the episode is a reference to the science-fiction horror film The Fly, the main character had a similar problem when he and a fly entered the teleporter he was working on at the same time transforming him into a fly monster.