Watch American Dad on TBS.com. While Steve (Scott Grimes) is avoiding Principal Lewis (Kevin Michael Richardson) after issuing a formal complaint to the school superintendent, he runs into a new problem... or three to be exact. When escaped convicts from Chimdale prison break into the school with plans to blow it up, Steve's only chance at survival is with the man he's been avoiding. Season 18, Episode 3: Viced Principal #AmericanDad #SethMacFarlane #TBS #Funny #Comedy #ScottGrimes SUBSCRIBE: bit.ly/TBSSub Download the TBS App: bit.ly/1qBbkMW About American Dad: “American Dad!” centers on super patriotic CIA agent Stan Smith (voiced by Seth MacFarlane) and the misadventures of his unconventional family in Langley Falls, VA. Stan applies the same drastic measures used in his job at the CIA to his home life, where Stan’s blissfully unaware wife, Francine (Wendy Schaal), has an unfaltering loyalty that makes her blind to his unabashed arrogance. His left-wing activist d...