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.
The adventure continues to the top of Europe, where clues and views abound; players begin to realize the value of misdirection; as bonds start to form, so do cracks in trust; one player's deception leads to another's demise.
Love is in the air as the journey continues and the clues get trickier; with romance brewing and red herrings in play, one player's journey ends; two surprise newcomers arrive and immediately shake up the game.
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?
Players compete and spend the night in one of Europe's most haunted castles; when too much information spreads, a brutal decision sends one of the game's strongest home.
Jeffrey makes the game harder; the players' lips tighten and alliances go to war; someone is forced to deceive their closest allies; when Destination X is finally reached, the group is hit with the biggest shock of the season.
In Venice, the players leave the bus behind but not the drama; daggers come out and loyalty is tested; a secret alliance is revealed in a dramatic exit; one player is lost to the Garden of Lost Souls.
In the semifinal, the four remaining players each receive cryptic clues and must decide if they will share them or try to figure out Destination X alone; a high-stakes game aboard a yacht determines the finalists; one player is left out to sea.
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.