Forced to watch a grotty old 1970s health and safety film during the school's annual 'Safety Week', Mitchell, Becky and Templeton find themselves trapped inside the movie!

During School Safety Week, Mitchell, Becky and Templeton are placed in detention and forced to watch a horrible old school safety film from the 70s.

This being Strange Hill, the trio soon find themselves trapped in the film itself, in a 1970s version of the school where anything that can go wrong, does. In a horribly unsafe way.

They must find a way out of the film as they face a school on the brink of multiple disasters - pretty much every disaster film from the 70s. Along the way, they get help from an unlikely source - the mysterious school custodian, Murdoch who has a mysterious connection to the film itself.