S5, E11: The ultimate prank battle is on between brother and sister when Sue discovers that Axl stole the high school's Thundering Hens mascot head over a year ago, forcing Sue to wear an embarrassing chicken head in her role as the school mascot. Meanwhile, a friendless Dr. Goodwin tries to make friends with a reluctant Frankie and invites her to accompany him to after-work social gatherings; Frankie agrees to attempt to find her dog Colin Firth's owner if Mike tries — and fails — to make friends with him; and Brick tries to muster some interest in a recommended book on Debbie Reynolds.