It’s Christmas Eve and the team are joined by Corporal Gordon House as he begins his tour of duty. Captain Nick Medhursthas to try and get him up to speed, but as Towerblock finished top of his class on the High Threat Course, he believes that he knows everything. He soon discovers though that things are different in the field, even on Christmas Day.
Nick has to deal with a gruelling challenge with a booby-trapped car bom. Simon attempts to stand up to his fiancee.