Nobody at school can see past Lenny's size to the person within, and he's sick of trying to make them. So when lessons gets too tough, he always goes to his bench to think. At least there no one can see him. But one day, midway through lobbing his empty can of IrnBru into the river, he's stopped by Bruce. Bruce lives in a cardboard home hidden away by the banks, and he doesn't approve of people messing up his front lawn -
But a bumpy start soon gives way to an unexpected friendship - and an epic roadtrip - that will change both of them for life.