After the teens spend hours picking out the perfect Christmas trees, they devise a special plan to help a friend in need. Meanwhile, missing her mom, Summer feels even more somber during this holiday, & Johnny's (recurring guest star RYAN DONOWHO) sudden misfortune forces him to take matters into his own hands. Kirsten tries to put the past behind her & make amends with Julie. Reminiscing Seth vows to put a little "mukkah" into Ryan's "chris, & Ryan gets Bar Mitz-vahkkahed" on the third annual Chrismukkah episode.