Alvin and the Chipmunks - Season 1 - Eps 19: Alvin... and the Chipmunk
Alvin demands a short trip away from obsessed fans who begin following him everywhere he goes. So, the Chipmunks go for a picnic out in the woods, only to be found again by their fans. Alvin runs off into the woods, and runs into a wild chipmunk. He decides to change places with the chipmunk, and he stays in the chipmunk's tree, while the wild chipmunk takes his place. All goes well until the real Alvin is caught by a hunter that holds him hostage. Simon, Theodore, and the wild chipmunk must save Alvin before it's to late.
About Alvin and the Chipmunks

Title: Alvin and the Chipmunks
First Air Date: 1983-09-17
Last Air Date: 1990-12-01
Status: Ended
Rating: 6.8/10 (from 74 votes)
Language: EN
Seasons: 9
Total Episodes: 172
Network: NBC
Genres: Animation, Comedy, Family
Production Companies: DiC Entertainment, Bagdasarian Productions, Ruby-Spears Productions, Murakami Wolf Swenson, A-1 Productions
Synopsis
Three chipmunk brothers, Alvin, Simon, and Theodore are adopted by human, Dave.
Cast

Ross Bagdasarian, Jr.
Alvin / Simon / Dave Seville (voice)

Janice Karman
Theodore / Brittany / Jeanette / Eleanor (voice)

Dody Goodman

Nancy Cartwright

Frank Welker

Tress MacNeille

Ross Bagdasarian