An incorrigibly self-serving exiled squirrel finds himself helping his former park brethren raid a nut store to survive, that is also the front for a human gang's bank robbery.

Surly: Buddy, we found it! The lost city of Nutlantis!
Surly: It's not going to be easy but we're talkin' almonds, pistachios, walnuts and did I mention the peanut brittle?
Jimmy: Whoa, is that a nut, or a candy?
Surly: [laughs] Both.
Grayson: This squirrel is a hero!
Surly: Okay, we get a crew, we break in, but we do it my way...