When Mandy and Grim go to the warehouse store, Mandy notices that everything seems to be in order, lacking any presence of chaos. Hoss Delgado, spectral exterminator, arrives saying that everything has been that way since he started dating Eris, the goddess of chaos. Mandy assures Delgado he must break up with Eris to restore chaos, but fearing her temper, he is reluctant to do so. After failed attempts by Grim, Mandy, Billy, and Irwin to break their relationship, Delgado finally tells Eris the truth about he wanting to break up, and she complies by turning into a giant insect and devouring him.
During a terrible storm Kris, Matt, Junior and Dani are trapped together and a torrent of secrets and lies are revealed. Ken pits Dani and Junior against each other just to save his skin. Kris takes a chance, but can she regain what she's already lost?
When Billy gets his kite stuck in a tree, he starts throwing objects at it to knock it down, including Mandy and a group of three boy scouts, but all objects get stuck too. Frustrated, Billy and Grim call a druid for help, who in turn trains them to become druids, so the three of them can perform a ritual. Meanwhile, inside the tree, Mandy battles a group of squirrels, and leads the scouts back to the ground. Since the druidic chants did not work against the tree, the druid goes ahead and uses a chainsaw to bring the tree down, but this gets him arrested.
When Billy and Irwin are yet again bullied by Sperg, they decide to play for the school's football team so they are not bullied anymore. During practice, Irwin shows a powerful arm and he becomes the starting quarterback, while Billy is relegated to being a punching bag. During their first game, Mandy directs the team into scoring their first ever touchdown, so Coach Kilgore gives her the job of captain cheerleader, taking it away from Mindy. With Irwin's arm and Mandy's cheerleading the team reaches the finals. Mindy tries different ways to get back at Mandy and recover her job, but she ends up affecting her own team, which eventually loses the game.
On the season finale, it's the end of the year and questions that have been asked throughout the season get answered. Spinner confronts Jimmy and a conflict that's been going on for the whole season finally comes to an end. Paige is confused with what happened last night with Spinner. Darcy leaves Spinner a love note and he must decide if Darcy or Paige is the girl for him. Manny's end of the year play premieres and a character from the past makes a shocking reappearance for her class's graduation.
The Silvas are a "Yours, Mine and Ours" family spiraling out of control. Tom and Danielle each have two children from previous marriages, and they have three children together -- the age range is six months (Caden) to 17 years (Meghan). Tom works all week away from the family in the Army National Guard, and soon he'll be deployed to Iraq for a year and a half. In his absence, Danielle, who is very disorganized, allows the children to run amuck. The kids curse openly with no consequences, and there's a lot of negative talk from the parents, which has trickled down to the kids as well. Dad and Meghan's relationship needs repair before he leaves for the war, and Jo senses that Danielle is presenting a false "June Cleaver" persona.
After a group of wealthy women are robbed at a luxury day spa, evidence leads the CSIs to believe that this is a part of a much larger car chopping scam and each of these women are being targeted for a home robbery. Matters become worse when Horatio discovers that Marisol was also at the spa during robbery and he must now protect her when her life is threatened. Meanwhile, Ryan must deal with the fallout after he freezes during a shootout.
Lacey wants to buy a new car, and asks for Brent's help, relying on his specialized knowledge gained from his job; unfortunately she only learns what not to do. Oscar looks to Wanda for advice on what to get Emma as an anniversary gift; unfortunately he only learns what not to buy... the next time. Karen and Davis, tired of the 'cop in the donut shop' stereotypes, try out some new and unusual snacks.
Jack bargains with a German intelligence agent in order to find the woman who can lead him to Bierko. Buchanan chafes against the new chain of command as Homeland Security prepares to take over CTU operations. Aaron receives a request for a secret meeting from Wayne Palmer, as Logan implements martial law in L.A.
Veronica and Nick request a judge to postpone Lincoln's execution. A C.O. becomes suspicious about a broken door.
Marshall interns at the corporation where Barney works and Lily finds that he is becoming a shallow jerk as he tries to fit in with his crude fratty coworkers. Meanwhile, Ted feels guilty when he receives several gifts from Victoria (Erika Singh) while he hasn't sent her anything.
Alan starts to have financial problems when he starts paying for his girlfriend's bills, so Charlie tries to get him to break up with her. Meanwhile, Judith is after Alan because he is late in paying his alimony check.
When Christine learns that her close friends, Barb and Pete, are responsible for introducing Richard to his "new" Christine, she allows them to set her up on a blind date of her own. After a series of unsuccessful dates, she finds the possibility of love in the strangest of places. Meanwhile, Matthew takes Ritchie to swimming lessons.
Zack and Cody have to repair a wall that they damaged as punishment. London begins attending Maddie's private Catholic school due to her poor grades.
In order to afford a cruise, Doug convinces Carrie to cut her hair to sell to a wig maker, but regrets his idea after the deed is done.
New faces, same cracked aces. Antonio Esfandiari and Phil Hellmuth make their High Stakes Poker debut alongside Daniel Negreanu, Eli Elezra, Barry Greenstein, Shawn Sheikhan, Freddy Deeb, and Doyle Brunson.
A brush fire rages and some firemen lose their lives. With some investigation the team finds some evidence that will post to a loose link in the chain of command. Macy tries to keep his daughter in rehab.
When Bobby attends the school's job shadow program, he winds up interning for Peter Sterling, a man who runs a pooper-scooper business. Bobby is so impressed by Peter that he decides to pursue the same career. Meanwhile, Hank is trying to train Joseph at Strickland Propane.