Remy, Micayla, Bennett, and the C Twins are back on Seagate Island for another summer of beach traditions, new and old. A new tradition: keeping Remy's dog-sitting business going. Remy loves seeing her dog friends (and her real friends, too), but the doldrums start to sink in when it turns into the rainiest summer on record, with evacuation constantly threatening to ruin the world's most perfect vacation spot. Tempers are short and dogs are bored. What can one 12-year-old do to create summer magic when the summer doesn't seem to be showing up?