Carly's grandfather comes for a visit and is appalled by Spencer's unusual behavior, so he questions Spencer's ability to be in charge. Carly must convince him that Spencer is capable of being her guardian.
During a confrontation with Diablo, Johnny is exposed to a potion that makes him more powerful. Unfortunately, the potion also begins to turn him evil.
After Johnny and Dukey send Bumper packing, they start to come against each other in a game of "Say Uncle".
Yeah, Kenichi’s a total wimp. He’s always getting picked on and doesn’t have a lot of friends to stick up for him. The guy needs motivation if he hopes to graduate in one piece. Well, Miu’s the perfect motivation. She’s hot, she accepts him, and she just so happens to live at a dojo with six martial arts masters. You could say fate has led Kenichi to their door, or you could say he was just following the hottie. Either way, he’s about to get whipped into serious shape. If he can survive some hard-core training, he might survive another day at school. He might even score with Miu. Yeah, you could call Kenichi a wimp. But let’s go with underdog instead.
After a deceased relative of Zoey's sends her tons of boxes of ribs, Zoey, Chase, Micheal, and Logan agree to have a rib cook-off. After a fierce feud between Micheal and Logan, they decide to compete against each other with Zoey on Micheal's team, and Chase on Logan's. Quinn accidentally blows Mark's eyebrows off in an experiment gone awry.
When Ben accidentally breaks Gwen's laptop, he participates in the "Ultimate Wrestling Competition" as Four Arms to get the prize money for a new laptop to replace Gwen's broken one.
Batman and Robin must battle Superman, who is under Lex Luthor's mind control, as the villain plans to launch a wave of robots and take over the world's armies.
Imperiex begins his conquest of the 31st century by freeing the Legion's greatest enemies from prison. The team must look to Superman in the 21st century for help, and Superman comes to the future only to meet his 41st century clone, Kell-El.
When Kiwi's mindless destruction becomes too much for the group to bear, they force Odd to keep him at the factory. As Odd drops him off, XANA possesses Jeremie's Kiwi Two robot, turning it into an army of self-replicating attack dogs. The dogs attack Yumi and Ulrich, among other children, during Jim's Pencak Silat class. After Aelita deactivates the tower and a return trip erases the incident, the group decides that the regular Kiwi isn't that bad, after all.
Tom and friends face their greatest Chaotic challenge ever – the all-powerful, all-terrifying, all-destructive Allmageddon Attack. The only hope to combat this fearsome force lies in a crazed creature named Hoton. Can our heroes find a way to stop the unstoppable before Peyton gets Allmageddoned? Little do they know, Peyton has a plan to beat it.
In order to celebrate Otis' birthday the animals trick Farmer into going to Turnip-Con for the weekend. However his plans hit a snag when that very same weekend the Beady's nephew, Eugene, comes for a visit.
An aspiring writer develops an obsession with Wicca, which alienates her Christian son and unleashes powers that she can't control.
Jennifer goes to Melinda’s store to sell some belongings that came from her deceased parent’s house. Melinda then helps Jennifer with her father who died when she was only a toddler. Someone takes photos of Melinda and they show something suspicious. Melinda finds that she has a hidden connection to Grandview while digging into her families past.
The new owner of the Montecito, A.J. Cooper, introduces himself to the staff an brings a new campaign with him: "Anything Can Happen." The staff get worried that people might get fired. Sam is seeing a psychiatrist because of her recent abduction, but she won't open up to him. Instead, she tells him everything about her colleagues.
The Montecito staff members along with the Las Vegas police have their hands full as they try to discover who killed Mary's father while investigating the recent hotel robbery. A mysterious cowboy pays the tax debts of the Montecito and becomes the new owner.
After the events of "The Janus List," Colby escapes from custody. Don and the team go after him, but everything may not be as it seems.
Guests Jimmy Carr, Phill Jupitus and Johnny Vegas join Stephen Fry and Alan Davies in a Quite Interesting quiz about eating.
A dangerous combination of gangs, drugs and boredom encourages inmates to commit violent offenses in prison.
With Cleo's parents now divorced, Cleo is ordered by her dad to take more care of Kim, starting with taking her to a concert. But on the night, Cleo, Rikki and Emma all accidentally see the full moon, and take off to Mako Island, with Lewis in hot pursuit. Once there, the girls undergo another magical transformation in the Moon Pool, as a rare planetary alignment intensifies the power of the full moon – Emma's power is enhanced so that she can produce snow and frost, Rikki can conjure lightning, and Cleo can now control wind as well as water. After the moonstruck girls nearly harm Lewis, they realise that they must work to control their new powers, before anyone else gets hurt.