In December 2011, the series was renewed for a third season, however Disney announced that Musso would be replaced with actor Adam Hicks who has worked with Disney on previous projects such as Zeke and Luther. The third season debuted in June 2012. On November 3, 2012 Adam Hicks confirmed that Pair Of Kings wasn't renewed for a fourth season.
Brady goes back to Chicago as he feels he is not mature enough to deal with being a king or to be Mikayla's boyfriend. King Boz of Mindu (who is revealed to be Boomer and Brady´s long lost triplet) comes to Kinkow because of a terrible storm that sank his island. Boomer has to get used to Boz, and Boz has to get used to Kinkowian life.
- Doc Shaw as Boomer
- Adam Hicks as Boz
- Ryan Ochoa as Lanny
- Geno Segers as Mason
- Kelsey Chow as Mikayla
- A new character Boz (portrayed by Adam Hicks) turns out as a long lost brother of Brady and Boomer.
- Mitchel Musso who portrayed Brady wasn't part of the main cast this season.
|The New King||Writer: Dan Cross, Dave Hoge||Director: David Kendall||June 18, 2012||#3x01|
|Boomer tries to follow Brady when he learns that he has left the island for good, but a storm forces him to stay behind. That same storm sinks a nearby island, sending its inhabitants to Kinkow, including their king who turns out to be Boomer’s long lost triplet brother, Boz.
|Two Kings and a Devil Baby||Writer: Matt Wickline||Director: Linda Mendoza||July 2, 2012||#3x02|
|When Boz defies Boomer's warnings and goes to the Dark Side, he finds a baby and brings it home, only to discover the Tarantula People are threatening war because someone has stolen their baby prince. Boomer and Boz must learn to work together and return the feral, hissing, highly mobile baby to the Tarantula People before war breaks out.
|Fatal Distraction||Writer: Sean Cunningham & Marc Dworkin||Director: David Kendall||July 9, 2012||#3x03|
|When Boomer and Boz tarnish Mikayla’s first chance of beating Mason for “Guard of the Year,” they feel guilty and secretly set out to help her win the coveted award by putting themselves in danger. When their attempt fails, they try to distract Mason and give Mikayla an edge by setting him up with a pretty girl, who turns out to be his ex-girlfriend that wreaks havoc on Kinkow.
|Wet Hot Kinkowan Summer||Writer: Lisa Muse Bryant||Director: Adam Weissman||July 16, 2012||#3x04|
|Boomer, sick of Mikayla's awkwardness and overall lack of coolness, decides a summer vacation cruise with the rest of the island's teens could be just the ticket to make her more popular. But when Boz unknowingly steers the ship into the Dark Side waters, the only teens Mikayla befriends are undercover amphibious creatures that have snuck aboard in search of live offerings for their swamp dwelling overlord, a massive bullfrog. When the summer vacation goes awry, the kings and the rest of the teens have to rely on Mikayla to save them.
|O Lanada||Writer: Sean Cunningham & Marc Dworkin||Director: Sean Mulcahy||July 23, 2012||#3x05|
|When Boomer and Boz find out Lanny is mad at them, they buy him his own island to rule. But when Mikayla informs the Kings that the secret source of their wealth lives on that island, a gopher that naturally produces gold, they must try to get the gopher back without Lanny ever being the wiser.
|Heart and Troll||Writer: Donald Beck||Director: Adam Weissman||July 30, 2012||#3x06|
|Boz tries to prove to his ex-girlfriend that his life is better without her by putting on a big charade portraying an impossibly amazing life, complete with his own servant (Boomer), a magical troll that grants wishes (Lanny) and a pet Sasquatch (Mason). Unbeknownst to the kings, she doesn't actually care about Boz and is only there to take the riches he made up, including Boomer and Lanny.
|I Know What You Did Last Sunday||Writer: Donald Beck||Director: Rich Correll||September 10, 2012||#3x07|
|Having heard all about Boomer's legendary achievements on Kinkow, Boz feels the pressure to be an equally great leader. But, his goal is hampered when a twelve-year-old pest (Karan Brar) shows up from Boz's past with a devastating secret that could ruin his reputation.
|Lord of the Fries||Writer: Lisa Muse Bryant||Director: Lenny Garner||September 17, 2012||#3x08|
|When one of the Kings' stunts gets Mikayla suspended, the boys refuse to take responsibility. Mikayla calls them horrible bosses, quits her job as their protector and takes a job at a local fast food restaurant. When the Kings' attempts to get her back fail, they buy the restaurant and become her bosses all over again.
|Dancing With the Scars||Writer: Pat Bullard||Director: Robbie Countryman||September 24, 2012||#3x09|
|Boomer wants Boz to enter a dance contest with him but learns his brother's moves are horrific.
|I'm Gonna Git You, Sponge Sucka||Writer: Dan Cross & David Hoge||Director: Leonard R. Garner, Jr.||October 1, 2012||#3x10|
|When Mason thinks Boomer's club is too rowdy, he takes over as head bouncer, but starts to keep the party out. In order to get Mason away from the club, the Kings lead him on a wild goose chase, leaving the club wide open and vulnerable to a mythical human-like sponge creature named Damone (played by WWE's "The Miz"), who absorbs everyone's confidence.
|Bond of Brothers||Writer: Lisa Muse Bryant||Director: Ken Ceizler||October 8, 2012||#3x11|
|Boomer and Boz are each granted one wish on their birthday. Boomer wishes for the island to be danger-free and Boz wishes for the two to be closer, but gets more than he bargained for when they become magnetically attached.
|King vs. Wild||Writer: Bob Keyes & Doug Keyes||Director: Leonard R. Garner, Jr.||October 15, 2012||#3x12|
|After all that Boomer has taught Boz about living in the civilized world, Boz decides to address Boomer's lack of survival skills and forces him to go camping. Although Boomer is resistant at first, he has no choice but to become a fast learner and use his newfound skills when the camping trip goes awry, and he needs to help Boz fight for their lives against a jungle werewolf.
|Inconcenient Tooth||Writer: Chase Heinrich||Director: Victor Gonzalez||October 22, 2012||#3x13|
|When an evil dentist drills a robotic tooth in Boz's mouth, Boomer must stop him.
|The Oogli Stick||Writer: Wesley Johnson & Scott Taylor||Director: Rich Correll||October 29, 2012||#3x14|
|The Kings are transformed by a curse into ugly, unrecognizable versions of themselves when they turn down two goat sisters who wish to be their dates to a dance.
|Thumb & Thumber||Writer: Sean Cunningham & Marc Dworkin||Director: Larry McLean||November 5, 2012||#3x15|
|When Boz sets out to help Boomer make his childhood dream of becoming a professional athlete come true, Boomer believes he's a natural at the dangerous island sport of Thumb War. With a chance to become a pro thumb warrior, Boomer wagers the castle and loses, only to find he's been conned by a Dark Side crook.
|Loathe Potion No. 9||Writer: Lisa Muse Bryant||Director: Linda Mendoza||November 26, 2012||#3x16|
|Boomer fears that Mikayla and Boz's budding friendship will blossom into a crush and he'll lose another brother to a Mikayla preoccupation. He gives Boz and Mikayla a Dirt Fairy potion so they'll dislike each other, but the potion is too potent and sends them into mortal combat instead.
|Yeti, Set, Snow||Writer: Sean Cunningham & Marc Dworkin||Director: Robbie Countryman||December 3, 2012||#3x17|
|When Boomer discovers that he and Boz do not have any brotherly memories like he and Brady do, he sets out to recreate a ski-trip from his childhood. But, when Boomer finds that the land he wants to build his resort on is occupied by Yetis, he removes them from the land and attempts to teach them how to be civilized.
|Mysteries of Kinkow||Writer: Matt Wickline||Director: Sean Mulcahy||February 4, 2013||#3x18|
|Boomer, Boz, Mikayla, Mason, and Lanny watch Candis' show, revealing the mysteries of Kinkow and causing Boz to have doubts about being Co-King. When a temple is discovered, belonging to an ancient evil named Kaita the Bat Rider, Candis is trapped inside, and the entrance is sealed by a force field only the Kings can get through.
|Meet the Parents||Writer: Donald Beck||Director: Eric Dean Seaton||February 11, 2013||#3x19|
|Boomer goes to Chicago in an effort to convince Rebecca's father to let him see her after he forbids them to be together, while Boz tags along and searches for a safe place to hide the Bat Medallion.
|Long Live The Kings||Writer: Dan Cross, Dave Hoge||Director: David Kandell||February 18, 2013||#3x20|
|The island of Kinkow seems destined for doom when it's most feared warrior, Kaita the Mummy, returns in its powerful and dangerous human form. Boomer and Boz receive a pep talk from the ghosts of their parents, and engage in a perilous battle with Kaita and his undead army in an attempt to defend their thrones and save their home.