Tom and Lucy are both happy young adults eager to set out on their first weekend getaway as a couple. They set off for a planned stay at a remote hotel but quickly find themselves getting lost in a maze of backwoods roads. However they soon discover that they are at the mercies of an unknown tormentor that is eager to take advantage of their vulnerability and distance from civilization.

Jack Reagan is a slobbish,old style cop whose unsubtle methods usually get results,to the annoyance of internal affairs officer Lewis,who would be even more annoyed if he knew that Reagan was having an affair with his young wife,policewoman Nancy. After Reagan disobeys orders and a shoot-out in central London following a bank hold-up ends in carnage he is stripped of office and briefly imprisoned. However,thanks to the loyalty of his young protege George Carter and a little string pulling from his superior Frank Haskins Reagan is released to bring down the villains in a gun battle at Gravesend marina,ensuring the continued existence of his department - the Sweeney.

Karen, a recovering addict, has settled into a successful new life with her husband and young daughter. When Karl, an old boyfriend recently released from prison, turns up unexpectedly, Karen's buried past comes back to haunt her. Karen is forced to go on a road trip and confront a world she thought she'd escaped from if she is to protect her family and her future.