Ten strangers board a blacked-out bus and embark on the journey of a lifetime. With no idea where they are, they compete in challenges, earn clues and try to locate Destination X on a map. The person who guesses furthest away is sent home.

New arrivals Peter and JaNa waste no time stirring up drama; the players get high, literally; after being voted most trustworthy, Biggy faces a brutal twist -- betray an alliance member or risk elimination himself.

Jeffrey ramps up the game in a fairytale-themed episode where players leave the bus and board a train to the next Destination X; with bluffing in play, morality is tested; who will stay truthful and who will choose deceit to get ahead?

In the grand finale, the three remaining players battle for the $250,000 prize in a race across London to find the last Destination X.