"Proof of Life" (German: Entführung in London) is a two-part storyline from the long-running Thames Television series The Bill to celebrate the 25th anniversary of its pilot, "Woodentop".

Holly tried in vain to help a dying teenager stabbed to death on her bus, and her help in solving the murder case saw her tell Terry she wanted to join the police force.

The day of the "big job" dawned when DC Terry Perkins was asked to drive Brady to the riverside, where he abducted a teenage girl at gunpoint.

Back at Sun Hill, Superintendent John Heaton alerted DCI Meadows to events when a police director in Germany told them a German woman staying in a London hotel, Helen Wegner, had reported her daughter Charlotte Fischer missing.

When Jack arrived to the hotel with DCs Mickey Webb and Kezia Walker, they met Leipzig based officers Hajo Trautzschke and Ina Zimmermann, who had flown in at Helen's request alongside her husband Karl.

Charlotte escaped in the chaos and shot Hauptmann's right-hand man Dennis after he tried executing her, before being talked down by Jan. Jack and Hajo thanked one another before the Sun Hill team flew home, and when Terry returned to London he was met by daughter Holly.