There has been an explosion on a ship and several men are trapped. The job of rescuing the injured crewmen is made more difficult when the squad finds evidence of a bomb and find themselves hampered by the threat of additional explosions and a man who is not what he seems.

Several members of the squad are rethinking their future. Will they stay or leave Rescue? How will it all end?

Mickey has the dirty task of rescuing a man from a chimney. Angel is given a sendoff after he is dismissed from the Police Service. The squad races an oncoming storm in their attempt to rescue two children lost in a vast system of stormwater tunnels. Georgia and Alex accept the reality of their relationship. Georgia is farwelled as she transfers out of Rescue to join a youth crime task force. Surrounded by change, Mickey reconsiders his own future at Rescue and resigns.