A wish-granting comet heads to Middleton, adding even more anticipation to the exciting graduation season in 'The Comet.' As the rest of the town thinks of their one wish, Cassie (Catherine Bell) just wants the best for Sam (James Denton) when he is offered a dream job across the country after successfully performing a tricky surgery. Grace (Bailee Madison) prepares for her valedictorian speech, while Nick (Rhys Matthew Bond) becomes unexpectedly nostalgic as high school wraps up. Abigail (Sarah Power) plans a trip to Europe to forget about her breakup with Donovan (...