Having defeated Chairman Drek in their last intergalactic adventure, Ratchet and Clank have settled back into a quieter life — until they are approached by Abercrombie Fizzwidget, the CEO of Megacorp, who needs them to recover the company's most promising experimental project, stolen by a mysterious masked figure. What at first looks like a Sunday stroll in the park soon entangles the duo in a colossal struggle for control of the galaxy. Armed with some of the coolest weapons and gadgets ever invented, Ratchet and Clank set out to destroy anyone and anything standing between them and the secrets behind "The Experiment."