When British Speedway champ Mike Harris is left to look after the kids for the summer holidays, he is frustrated that all they want to do is sit inside and play on their devices. Insisting they get outdoors for real adventure and exercise; he is about to set off a chain of events that will change their lives forever. When the boys discover a hoard of stolen diamonds from a royal castle, notorious crime boss (Jon Campling - Harry Potterâ€™s infamous Death Eater) and his bumbling goons are soon in hot pursuit. Accidentally getting their dad arrested for the crime, the boys must use all their physical and mental skills to bring down the criminals and get dad out of jail in time for his final speedway race!
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