A horrific car crash puts driver Ellen in hospital with serious injuries. Pc Joe Mason investigates and quickly works out that she was speeding. Her family, Lennie, and daughter, Trudi, were in the car with her but Lennie denies she was driving too fast. He also doesn't mention the car that was chasing them but Joe works that out for himself. What he can't fathom is why Lennie's lying. The veil of mystery's lifted when Joe's investigation reveals that Lennie was managing the books for a gang of crooks in Leeds and has gone on the run with the evidence of their crimes. The gang wants to silence him and if that means killing Ellen or Trudi or all three of them, well, then that's what they'll do. Meanwhile, in the village, another explosive drama is unfolding... David Stockwell has bought an old jeep and finds in it an old box full of what he thinks are tins of peaches. In the pub, Ventress takes a look and realises it's actually full of hand grenades. It turns out that David's jeep used to belong to a now elderly Field Marshall. The old guy would like to see the vehicle one last time but the villagers can do better than that: they clean it up and put it in a parade of ex-service men.
