This is the game show that tests best friends by wrenching them apart and forcing them to keep their enemies close and work with their rivals instead. To get ahead, the friends must compete alongside their enemies and tackle challenges in the name of friendship. Four pairs of best friends - Thomas and Oliver, Abigal and Ceriane, Alfie and Cassien, and Amina and Doreen - are put through their paces. They tackle Tube Strike together, then are put into the Mixer, a giant selector machine, which splits everyone up and spews them out into new pairs. Each contestant comes face to face with the enemy: the person who is now their frenemy. It is with their frenemies that the contestants are tested to the limit as they tackle more challenges: Air Pressure, Puzzle Panic and Push on Through. After each one, there is an elimination and a pair of frenemies is sent back to the Mixer in Lockdown. The others play on, hoping not to be eliminated. When only one pair of frenemies is left, they are reunited with their best friends to battle it out in the final. This is a gripping quiz and, for the losers, it means a trip under the clag - nasty, smelly, gurgling gunge - which is dispensed from large metal chutes. The show is packed with tension and excitement and the winning pair of pals are presented with silver friendship medallions as a memento of their glorious win.