Pinky and the Brain - Season 2 - Eps 7: Welcome to the Jungle
Animal rights activist think Pink and the Brain are monkeys and release them into the jungle after taking them out of Acme Labs. The pair try to make it back home, but run into the Brain's old enemy Snowball.
About Pinky and the Brain

Title: Pinky and the Brain
First Air Date: 1995-09-09
Last Air Date: 1998-11-04
Status: Ended
Rating: 7.6/10 (from 699 votes)
Language: EN
Seasons: 5
Total Episodes: 95
Network: The WB
Genres: Animation, Comedy, Family, Sci-Fi & Fantasy, Kids
Production Companies: Warner Bros. Television, Amblin Entertainment, Warner Bros. Animation
Synopsis
Pinky and Brain are genetically enhanced laboratory mice who reside in a cage in the Acme Labs research facility. Brain is self-centered and scheming; Pinky is good-natured but feebleminded. In each episode, Brain devises a new plan to take over the world, which ultimately ends in failure, usually due to Pinky's idiocy, the impossibility of Brain's plan, Brain's own arrogance, or just circumstances beyond their control.
Cast

Rob Paulsen
Pinky (voice)

Maurice LaMarche
The Brain (voice)