Peter Cottontail, named chief Easter bunny by the retiring Colonel Wellington B. Bunny, has to scramble to redeem himself after he messes up his first attempt at the job.
April Fools' Day turns into a bad day for Wagner the mouse when his best friend, Pearl the rabbit, and other children and adults at school play tricks on him.
Bradley, Brian, Nate, and Lucy follow clues to find whoever left a rabbit in their first-grade classroom on Valentine's Day, because they are worried the rabbit will get sick and die of loneliness.