It's Adam's first day as clinical lead. His first job is to show eight new F2s around the ED, which backfires when they are not all what they seem to be. When Adam is called to an emergency at a shopping centre, he chooses new F2 Heather to accompany him. The owner of the centre has set a bomb inside, which explodes, trapping Adam, Heather, Jeff, Polly and a group of homeless people inside. Meanwhile Yuki, May and Lenny are ordered out of resus by now-Trust Doctor Ruth Winters and Curtis' memorial tree is planted.