pSam Heughan has described a "visceral" fight scene in a snow-dusted forest as his proudest action moment in new thriller SAS: Red Notice.ppThe 40-year-old Outlander star has an extended fistfight with Ruby Rose during the movie, in which he plays a Special Forces operative who fights back when Rose's mercenary boss hijacks a train in the Channel Tunnel.ppDirected by Magnus Martens, the movie is based on a novel by former soldier turned author Andy McNab.ppSAS: Red Notice is available to stream via Sky Cinema and NOW TV from 12 March.