The Wrong Mans (S01E01)

Lowly council employee Sam Pinkett is the sole witness to a shocking car accident. Answering a ringing mobile phone that he finds at the crash site, he suddenly finds himself mixed up in a deadly kidnap plot. Shocked and hungover, Sam also has problems mounting up at work, where his boss and ex-girlfriend Lizzie feels like he isn't pulling his weight. But his excitable colleague Phil convinces him they need to step up and save the day - and after a trip to the hospital, this day goes from bad to worse. (BBC)