Lost in Time is a two-part story of The Sarah Jane Adventures which was broadcast on CBBC on 8 and 9 November 2010.
Clyde and George, an evacuee boy, hide in the church, and see the Nazis have a Chronosteen hammer which they intend to use to block radar systems and start the invasion of Britain.
Clyde distracts the Nazis with his mobile phone, claiming it is a bomb; George uses that moment to snatch the Chronosteen hammer.
She passes the key to her granddaughter, Angela Price, to help close the unstable time windows back in the shop on the day of the newspaper article about the alien sighting more than 100 years later.
When Clyde is sent back into World War II, he ends up hiding with a boy on a beach behind some sand dunes.
[2] James Peaty of Den of Geek praised the decision to split the protagonists saying that it made the pacing feel more "natural".