Michael throws a surprise 10th anniversary party for Melanie and Lindsay but the evening doesn't quite turn out as planned. Justin's stay in Hollywood is extended, in turn affecting his relationship with Brian. At Ted's suggestion, Brian invests his Kinnetik profits in a new venture.
Brian re-opens Babylon but the party boys have disappeared. Justin returns to Pittsburgh after the studio pulls the plug on "Rage." Michael decides to pursue custody of his daughter, Jenny Rebecca. Behind closed doors, Ted pursues a new look after a recent fling turns out to be a chubby chaser. Emmett lands a role in front of the camera as Pittsburgh's resident "Queer Guy" on the local news.
After chasing an unexplained capsule through time, the TARDIS lands in London, during an air raid. Rose investigates when a small child wearing a gasmask, standing on a rooftop, continuously calls out for his mummy. After floating above the city on a barrage balloon, Rose is swept off her feet by another time traveller – Captain Jack Harkness. Meanwhile, The Doctor follows a teenaged girl to a meeting of the homeless children of the Blitz. Here, the child in the gasmask is terrorising them with a parade of strange events, constantly asking for his mother.
A mysterious villain known as the Riddler challenges Yin, secretly helped by Batman, to a number of riddles. Things are not what they seem from the riddles...
Master Fung tells the Warriors that one of them will soon advance to Wudai Warrior level, and each one is convinced that it is them. A new Shen-Gong-Wu is revealed, the Ying Yo-Yo, which acts as a portal to the Ying-Yang world. After losing the Wu, the Warriors learn that Master Fung has been taken and transported to the Ying-Yang world, but they cannot rescue him without the Ying Yo-Yo. Omi goes to Chase Young for help, who agrees to assist him. After finding the Yo-Yo, Omi enters the Ying-Yang world and rescues Master Fung, but upon leaving, Omi's good chi stays while his bad chi begins to take over . . .
With Omi gone to the dark side and Master Fung in an unshakeable meditative state, things look bad. They get worse when Chase Young uses the Serpent's Tail/Reversing Mirror combo to restore Wuya to her human form, albeit without her powers. Meanwhile, the Warriors minus Omi discover that it was Chase who sent Master Fung into the Ying-Yang world, and that unless you have the Yang Yo-Yo, your good chi will be trapped there. Master Fung apparently put himself in a meditative state to keep his evil side under control, but Omi wasn't so lucky. The Warriors and Dojo, with Jack Spicer tagging along, decide to retrieve Omi and Master Fung's chi from the Ying-Yang world . . .
Bud, Lori and Koby encounter government scientist Professor Suzuki while investigating strange phenomena at the North Pole, while Starscream plans a new attack.
Cadmus has recruited a team of supervillains named Task Force X (based on the comics' Suicide Squad) made up of Deadshot, Plastique, Captain Boomerang, and the Clock King. Their mission: steal the Annihilator armor from the Watchtower.
When Walter is always coming home late and talking to another woman, Drake and Josh believe Walter is cheating on Audrey and they start snooping. Drake and Josh try all types of plans to keep them together.
Experiment 210: RETRO Nani meets some of her friends from high school and tries to impress them by saying she is vice president and they convince her to introduce them to her family. The day only gets worse when experiment 210, tries to revert everyone back to a prehistoric state...
There is a Battle of the Bands competition being held at the Tipton Hotel. Zack and Cody, along with Max and Tapeworm compete against Maddie's band in which has London in the band.
Mr. Krabs gets a new toy vender by the name of "Skill Crane." At first, Squidward doesn't like it, but when Mr. Krabs lets him and SpongeBob give it a try, Squidward becomes obsessed with it. Can he win anything from the Skill Crane before it ruins his life?
While on their way to the North Pole, Aang and his friends arrive at a giant canyon where two groups of refugees are bickering over who should get to go across. Aang decides to walk across with the two groups to ensure they don’t fight one another. However, he soon learns that the two tribes have been feuding for one hundred years and they both believe their actions are justified. But when the predators inside the canyon start to come out, Aang is stuck trying to defend both tribes from each other and the vicious wildlife.
It's Sunday and Squidward just wants to relax. But when SpongeBob and Patrick elect him as Good Neighbor President, they won't leave him alone.
Numbuh 1, both literally and figuratively, risks his neck when he sides with an adult to rid children of snake-like ties.
Bloo is challenged to a fight at the end of the day, but he would rather avoid it.
In season three's live finale, Donald Trump chooses his next Apprentice.
While investigating a case, Nick is abducted and is buried alive in a special coffin while his team takes unorthodox steps to try to find him.