Here's the official guide of Happy Endings season 3 episode 21 "Un-sabotagable". This episode airs on Friday, April 19 on ABC.
JANE TRIES TO WHIP MAX'S LIFE INTO SHAPE, AND DAVE CHALLENGES ALEX TO USE UP ALL HER GROUPONS --
Mark-Paul Gosselaar Returns as Chase
- Chase (guest star Mark-Paul Gosselaar), the ex-roommate whose life Max ruined, says he'd like to take revenge and do the same thing to Max, but Max's life is so pathetic it's "un-sabotagable."
- Max vows to prove him wrong and asks Jane to help him get his act together.
- Meanwhile, Alex asks the rest of the gang for help when Dave challenges her to finally use her stockpile of Groupons.