A fun, frolicking adventure about five kids with a mystery to solve!

Eleven-year-old Oli is spending his school holidays at Heroes Club, where kids can build friendships and learn about their emotions, but Oli just wants to be home … where it's familiar, not-so-boring and he can play his favourite game.

But when Oli and the other kids at the club see a stray dog who keeps disappearing into a soon-to-be-demolished building across the street, Oli and his four fellow heroes hatch a daring rescue plan to save the dog before it's too late.

It's going to take bravery, some seriously smart teamwork … and a few broken rules.