Unassuming people enter the Cash Cab as passengers expecting a normal taxi ride, only to discover they're instant contestants on Discovery Channel's innovative science-themed game show; hosted by Adam Growe.

Unassuming people enter the Cash Cab as passengers expecting a normal taxi ride, only to discover they're instant contestants on Discovery Channel's innovative science-themed game show; hosted by Adam Growe.

Unassuming Canadians enter the "Cash Cab" as simple passengers taking a normal taxi ride, only to be shocked when they discover that they're instant contestants on Discovery Channel's innovative science-themed game show; host Adam Growe.

Unassuming Canadians enter the "Cash Cab" as simple passengers taking a normal taxi ride, only to be shocked when they discover that they're instant contestants on Discovery Channel's innovative science-themed game show; host Adam Growe.

Unassuming Canadians enter the "Cash Cab" as simple passengers taking a normal taxi ride, only to be shocked when they discover that they're instant contestants on Discovery Channel's innovative science-themed game show; host Adam Growe.