It's a summer to remember for The Baby-sitters Club, with Mary Anne and Stacey staying in Stoneybrook while Kristy, Claudia, Dawn, Jessi and Mallory head on adventures all across the map. Mary Anne is tearful as the team have their final meeting before the summer holidays, but Kristy has a great idea (as always!) - everyone who is going away will write postcards to Mary Anne about their adventures, so she doesn't feel like she's missing out.