To contact the spirit of the previous Avatar, Aang must reach a temple in the Fire Nation before the sun sets on the following day. There he will learn what he must do to restore balance to the world. Zuko must defy his banishment to follow Aang.
As Trance's sun closes on Seefra-9, Rommie is rebuilt by Doyle to help evacuate the planet.
After C.J. discovers that Cate may be starting a relationship with Principal Gibb, he blabs it to Bridget. An angry Cate has Gibb put C.J. in charge of the student detention on Ditch Day, and C.J. gets even by detaining Bridget. Because she is stuck in detention and can't complete the Ditch Day prank herself, Bridget convinces Kerry and Rory to steal the rival school's mascot.
When Billy finally gets a "secret decoder ring" in his Blasto Bits cereal, he receives a holographic message from a strange creature who speaks about finding the "Secret of the Universe" in an abandoned mine shaft. All the other children of Endsville, also with decoder rings, race to the mine to be the first one to get the Secret. The entire effort is revealed to be a trap laid by Lubbermouth, a worm-like creature from Grim's past, who wishes to free herself from the curse of guarding the Secret. When Mindy looks down at the pit, she becomes the new guardian of the Secret and has to stay there forever.
After a trip to the mall, Mandy becomes the spokesperson for Happy Huggy Stuffy Bears, a new stuffed toy in town. After the success of her commercial, Mandy gives away stuffed bears to other children, who start wreaking havoc in the city. Eris, the goddess of chaos, is behind the toys, which mind-control the children into creating chaos. Mandy decides not to share control of the world with Eris, and orders Grim to destroy the toys.
Faith investigates Bosco further, Sasha and Ty make up, Cruz goes for some spiritual healing, Carlos meets Holly's parents.
It's soccer season and as per usual, Phil has soccer-on-the-brain. But when Lil casually joins the team, she surprises everyone, including herself, by instantly becoming a super star. At first Phil is excited about having another soccer-head in the family, but when Lil outshines him, he starts to resent her. When Lil finally realizes how upset Phil is, she has to decide whether to walk away from something she loves or continue to play and risk pushing away her only brother.
Kibre prosecutes an elusive career criminal for the murder of a sleazy ex-cop and the shooting of a detective. As Kibre's office works with Detective Fontana, they discover their prime suspect might also be a producer of snuff pornography. When a sting goes bad and a shocking courtroom development cuts the legs from under her case, Kibre's career teeters on finding why the shootings were committed in the first place. This crossover starts on Law & Order S15E20 Tombstone (I).
When Fran is planning a family vacation her ex-husband Ted pays the family a visit. Ted comes beacuse he is trying to buy is family back by, trying to mend his relationship with Josh, buying Allison gifts and offering Riley a job he can't refuse. The whole family including Riley seems charmed by Ted, but the only one that is not charmed is Fran. Fran does not want her children to get hurt by their father again. Also Josh gets a job at a video store.
Carey gets a secret admirer. Zack and Cody end up hooking her up with the wrong guy. Now they have to find the right guy that is Carey's secret admirer. Mr. Moseby and London get ready for Mr. Tipton's arrival.
Chester Yapsby has stolen a top-secret project that is capable of making insects grow to incredible heights. Kim is contacted for the assignment because she never fails to get a job done, though when it turns out that the giant cockroaches bother Kim as she has a personal fear of insects. Ron must help her overcome her fear in order to save the day. Meanwhile, Ron names one of the cockroaches Roachie and decides to keep it as a pet, much to Kim’s chagrin.
When Mrs. Hatchet discovers that Kim has an overdue library book, KP's cheerleading activities are suspended. Ron realizes that he lost the book, and he has to retrace his steps through the last few missions he and Kim went on to save Kim from...library lock-up!
Krypto is missing and it's up to Streaky the Cat to rescue him.
I.Q. Hi builds a detoxification machine and uses it on Dodgers as a test subject. The machine rids Dodgers of anything impure and turns him into the perfect duck. But Dodgers' friends and enemies quickly learn they like the old Dodgers better.
In order to get a free rocket scooter from the Protectorate, Dodgers and the Cadet must go undercover at a rocket cycle rally on Planet Dakota. However, they immediately find out that it's actually an innocent appreciation club for rocket cycles. Now, Dodgers takes it upon himself to turn these law-abiding citizens into lawless marauders.
Tricked into another of Team Rocket's schemes, the heroes are stranded on an island. They encounter Robin, a former salesman, who was saved by a Wailmer. Like the heroes, Robin, too, wishes to get off the island, but due to the constant whirlpools, he is barred from doing so. With the inevitable teamwork between the heroes and the villains, Team Rocket plan on another sabotage attempt to take the ship everyone is building and snatch the Pokémon at it.
It's Trey's 21st birthday and Marissa, anxious to help Trey and Ryan forge a relationship, throws a birthday party for Trey at the Cooper-Nichol mansion that turns out to be a rager. Seth is left in hot water by both Summer and Zach, but why? Sandy wants to continue his friendship with Carter, leaving a confused Kirsten. Meanwhile, Julie shares some memories with an "old" friend and in the process learns a few things and gains a few ideas.
One night, four cases. Grissom and Brass get a stolen hummer and a taco stand. Warrick gets a dead car show girl. Sara and Greg get a dead bodybuilder. Nick gets a dead boy found on a bench.