Graham and his gang want to play cricket in the park, but his neighbour Mildred is desperate to join in. With Keith in charge of looking after his baby brother's pram, things get complicated when jewellery thieves are involved in the mix.

The gang are going camping, and are adamant that Mildred won't be joining them, but Mildred's uncle arranges a tent for her and joins her at the site. To complicate things further, a passing gang want to terrorise Graham and co. for kicks.

William's had a terrible time at school, unwittingly yet repeatedly getting into trouble. He promises the headmaster his behaviour will be exemplary for a whole week, but while he's hopeful things will go well, the others aren't convinced.

Keith is taken hostage by two criminals who mistake him for another boy. Only Mildred is a witness to the act, but will anyone believe her, and will they be able to help free Keith if they do?

The gang clash as they decide who's going to represent the group in a go karting competition. But surely William isn't so annoyed with the rest of them that he'll team up with Mildred?