Petrie is very excited about the Bright Circle Celebration. But Cera thinks it's silly to thank the Bright Circle for shining. Cera and her dad steer clear of everyone preparing for the festivities. But when a fire threatens to destroy the celebration, Cera and her dad try to help out. But have they arrived too late?

When a relentless rainstorm destroys Petrie's nest, Petrie freaks out at the prospect having to move to a new nest. Meanwhile, Cera insists that Ducky take on the seemingly impossible task of teaching baby Tricia how to swim.