The 12 candidates tackle an education task that sees Darius dancing around a maypole and Natalie dressed as a robot. Can internet sensation Jackie Weaver and Danny, the son of DJ Goldie, save the day?
Alastair Campbell and Baroness Sayeeda Warsi challenge the remaining candidates to tackle obesity. What will MP Jess Phillips make of this ambitious bunch? And who'll live to fight another day?
With the country plunged into a state of emergency, the candidates are in crisis mode and face intense scrutiny from MPs Chris Bryant and Johnny Mercer as they make crucial and difficult decisions.
The heat is on as the candidates face a timely task: tackling the energy crisis. Two more hopefuls step up to the plate as the teams hit the campaign trail. Will a home-turf advantage pay off?
It's the semi-final. As the candidates tackle crime, they face a punishing grilling from top broadcasters Krishnan Guru-Murthy and Nick Ferrari. Who will survive their trial by media?
Cue battle buses, raucous rallies and intense campaigns as the top three candidates pitch their big ideas to the public and media in the final showdown. Who will be C4's Alternative Prime Minister?