S5, E3: Eighteen-year-old Rayk, a popular web video star, sets out to settle a lost bet by jumping from a bridge into the Spree River while being filmed by his younger brother Ole. But in the critical moment, Rayk suddenly vanishes, leaving Ole shaken and desperate for answers. What starts as reckless fun spirals into a baffling mystery, forcing investigators to determine whether this was an accident, a stunt gone wrong, or something much darker.