Task the Sidemen

Each Challenge pits numerous cast members from past seasons of reality shows against each other, dividing them into two separate teams according to different criteria, such as gender, which show they first appeared on, whether or not they're veterans or rookies on the show, etc. The two teams compete in numerous missions in order to win prizes and advance in the overall game.

Family Liaison Officer Lisa Armstrong becomes a little too emotionally involved with a case (to the point where she might compromise it) concerning a pair of missing Morecambe twins to whose distraught parents she is assigned.

Harley Quinn has finally broken things off once and for all with the Joker. Now, she's trying to make it on her own as the criminal Queenpin of Gotham City, with help from Poison Ivy and a ragtag crew of DC castoffs.

Each week, 20 contestants compete in a series of challenges in an attempt to win £10,000. These challenges are based in large pools of water or mud and generally involve large assault courses that participants must cross.