Trigger Point is set in contemporary London and focuses on the Bomb Disposal Squad. Known as "Expo", officers risk their lives daily on 'the long walk' towards danger. Death is always just a heartbeat away. Lana Washington (McClure) is an experienced bomb disposal operative.

Reckless and out of control, Lana is ex-military and pushed to breaking point dealing with a series of improvised explosive devices which threaten the capital during a terrorist summer campaign. Under extreme pressure and searching for answers, Lana can't help but become suspicious that the bomber is premeditatedly targeting her unit. It's a terrifying thought, but against all odds how does she prove it and discover the bomber's real identity?