As Alvin struggles with nightmares involving werewolves, the school play of Jekyll & Hyde is in jeopardy when the lead, Alvin, is suspended. In an attempt to boost his confidence, the principal suggests Theodore, who's suddenly going through some canine changes.
Not streaming on a subscription service in the US right now.
Starring Ross Bagdasarian Jr., Janice Karman, Maurice LaMarche, Miriam Flynn, Rob Paulsen, April Winchell, E. G. Daily, Frank Welker