BBC viewers will see tensions escalate on the new series of Ambulance . People will witness two Yorkshire frontline workers being forced to summon police assistance on the new series of BBC's Ambulance. On Wednesday (March 11) evening, BBC viewers will watch Sarah Tate and her partner Louise respond to a callout for a man who had collapsed and lost consciousness. Initially, paramedics suspected the man was experiencing a seizure, though they subsequently realised the episode had been triggered