Brian and Sophie decide they need to make a new friend – and with the children starting school, a teacher seems the perfect choice.

Jaq's arch-enemy Selena is drafted in to look after the kids, but when Brian and Sophie come home, she refuses to leave the house – calling for help

Sophie develops an interest in darts and is delighted when Eddie manages to score a bull's-eye. However, the youngster soon finds himself under so much pressure to perform in a competition that he struggles to throw straight. Meanwhile, Jaq finds herself in trouble with Brian after daring to complete his jigsaw puzzle.

Brian discovers a treasure chest, and sets out on a mission to splash the cash. Meanwhile, Sophie confronts a teacher that has insulted aliens, and Eddie breaks his friend's new computer.