When Mr. Chang's job might go to a faster train conductor, he has to prove that he can be just as fast; Adelaide wants to help the city cats clean up their acts for adoption.
Ronnie Anne is nervous to jump back on her board after a bad wipeout; a powerful artifact is coming to the Great Lakes City museum and it brings along a storm for the Casagrandes.
Adelaide and Carl battle it out to win Junior Zookeeper badges, but their fighting might ruin both of their chances; Hector finds out that Vito has a huge tab at the mercado and Vito offers to pay him back -- no matter what.
Ronnie Anne lands the internship of a lifetime with Bruno, but will she be able to hang? Dreaming of DJing at the Gatos halftime show, Carl goes undercover with Alexis and the school band.
After hearing about a contest to find El Falcon's next sidekick, Carl becomes El Pollito and tries to win. Once Carlitos falls asleep, Carl and CJ must conduct all their playing - and fighting - in absolute silence.
Rosa's family activity of birdwatching in the woods goes sour when Sergio gets mistaken for a rare species. Tired of not having a space of his own, Bobby secretly moves into a vacant apartment unit in the building.