Things start out fine when Rainbow Fish and his friends organize an impromptu sports day, but Spike is a sore loser, Puffer is a poor winner, and no one has any fun until Dyna finds a solution.
Nine-year-old Ben, a natural athlete and member of the Bobcats co-ed soccer team, wants to overcome his inexperience and prove himself on the field, but his obnoxious teammate, Mark, keeps hogging the ball.
Eleven-year-old Garry, embarrassed when his unathletic brother joins his lacrosse team, faces a bigger problem when the team bully turns on both of them.
Feeling bad about last year's Field Day, in which her slow running cost the relay team a victory, Nancy, who enjoys using fancy words, finds herself facing another Field Day and another relay race with a mean classmate.
Although she is a very good soccer player, Sister Bear isn't allowed to try out for the team until she is bigger, and so she signs up to be the team manager in hopes of proving herself to the coach.
