Michael puts his life in danger when he goes against protocol taking on a group of robbers single-handedly.

Tactical Response responds to a suspicious car tailing an armoured van. Michael goes against standard operating procedure taking on the robbers single-handedly. When the robbers discover their operation compromised, Michael finds his life in danger. Unable to hold back, Michael confesses his true feelings to Stella.

TR score a lead when an ordinary civilian unwittingly implicates himself with Andrew Kronin's gang. As Lawson pushes the man to get to Kronin, Dom takes umbrage. Dom snaps, turning his gun on TR and flees. As TR 2 track down Dom, Lawson exults when he recovers a substantial amount of the heist money.

Tactical Response, along with the armed robbery squad, conduct survellience on armed robber Andrew Kronin and his gang. To make things worse though, Michael's 'underground fighting' creates a dangerous complication when he is identified as a police officer by one of Kronin's men.

A runaway train ploughs through country stations on a collision course with another train. Lawson sets foot on the relentless express, unaware that he is on his own collision course with Andrew Kronin. As the final showdown beckons, Lawson will have to overcome more than just the train if he is to win back his teammates' faith.