Samuel Koch, a contestant on a popular German game show called “wetten Dass” (“bet It”), severely injured himself after he tried to jump over a moving car driven by his father during a live broadcast. Sam Koch, 23, is in critical condition after he attempted to jump over a moving car by bouncing on a pair of stilts outfitted with springs Sunday night. Samuel Koch, a contestant on Wetten Dass, was rushed to the hospital The show ended early due to the accident. Stuntman Samuel Koch was seriously injured Saturday while attempting to jump over a moving car on the German variety show “wetten Dass” (wanna Bet). Ten million German viewers witnessed a tragic accident on live television. Singer Justin Bieber had to cancel his presentation at a German Show called “wetten Das” after a previous presentation by a stuntman named Samuel Koch went wrong on live television. Koch was trying to jump over a moving car driven by his father. Amanda Betts Justin Bieber was scheduled to perform on popular German television show Wetten Dass , but was forced to cancel when a guest named Samuel Koch was severely injured after attempting to jump over a moving car while wearing shoes equipped with a suspension system, reports Us Magazine. Stuntman Samuel Koch was involved in a serious accident on live tv in which he was very badly injured. Tragedy struck a German game show, causing Justin Bieber to cancel his scheduled performance. Samuel Koch was trying to jump over a series of moving cars when he got caught and fell.