War of the Hecks is the eleventh episode of Season 5. It aired on January 15, 2014.
Summary[]
The ultimate prank battle is on between brother and sister when Sue discovers that Axl stole Orson High's Thundering Hens mascot head over a year ago, forcing Sue to wear an embarrassing bear head in her role as the school mascot. A friendless Dr. Goodwin tries to make friends with a reluctant Frankie and invites her to attend multiple after-work social gatherings. Meanwhile, Frankie is forced to give up Colin Firth to Dr. Goodwin just as Mike is finally starting to bond with him.