A.P. Bio - Season 4

A tornado puts the school on lockdown and Helen believes it's coming specifically for her; the kids pass the time by writing fan fiction, "shipping" various combinations of faculty members; Mary, Stef and Michelle devise a plan to escape the school.

Jack has the students form a fake cult to sabotage Principal Durbin's new school uniforms; Mary, Stef and Michelle prepare to see one of their favorite artists who is in town to perform.

Jack attempts to get closer with the guys at work by inviting them over for a game night; Helen helps Principal Durbin grow a backbone; Stef and Mary try to coax information out of Michelle about the court case she was a juror on.

When the A.P. Bio students reunite Jack with his deadbeat dad, Jack plots revenge by trying to expose his allegedly reformed father; a witch foretells of a grim future for Mary, Stef and Michelle that divides the women.

When Jack discovers his new girlfriend's therapy homework requires dating him, he turns the tables on her; Principal Durbin goes undercover to determine which faculty member is most worthy of a very special prize.

Victor attempts to catch up to his peers and become a man by sending Ashlanda a risqué photo; Grace and Anthony try to "Parent Trap" Mary and Principal Durbin after overhearing a conversation that makes them take pity on the single adults.

When Jack's girlfriend says she's going to dinner with a male friend, a jealous Jack tags along; Principal Durbin, Mary, Stef and Michelle take Helen out to cheer her up after a breakup.

Jack is enraged to find that the A.P. Bio students have stolen his beloved Harvard pen after he asked them not to touch it; Principal Durbin and Helen repeatedly fail the superintendent's inspections.