B.B. Miller brings Victorian street urchin Ben Hardy to the present day where he is examined by scientists.
B.B. and Ben find themselves in the time of the English Civil War with a lot of explaining to do regarding their sudden appearance.
After their previous escape B.B and Ben now find themselves captured by the Cavaliers instead.
Thinking they had been rescued by the Roundheads B.B and Ben are instead brought in front of the Witchfinder General to explain their time travel story.