S3, E10: 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, and 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 and make amends with Julie. Reminiscing Seth vows to put a little "mukkah" into Ryan's "chris," and Ryan gets "Bar Mitz-vahkkahed" on the third annual Chrismukkah episode.