Pink Panther and Pals

Zoo Ruse (1x11)

:

Ant and Aardvark are on exhibit at a zoo. Aardvark escapes his display in effort to get to the Ant's, but has a difficult time when he winds up going through other animal displays, then outside in the general public. He's able to get a set of keys from an animal trainer, but only succeeds in entering, then locking himself back in his own display.