BS has also renewed the series for a 22-episode 13th season, which will premiere in 2015.
Seth MacFarlane Stan Smith (voice)
Wendy Schaal Francine Smith (voice)
Rachael MacFarlane Hayley Smith (voice)
Scott Grimes Steve Smith (voice)
Dee Bradley Baker Klaus (voice)
Stan sets out to stop a tree that he considers his father from being cut down. Steve realizes he's stopped growing and considers surgery.