Seeking to maintain the balance in his kingdom, Julien captures a foosa and attempts to domesticate it into a lemur.

After stumbling upon a Monopoly-type game, members of the kingdom decide to play. As the craze catches on, everyone becomes involved in a real-world version which creates its own set of problems.

King Julien rescues an old lemur by the name of Doc Sugarfoot from a cave thought to be inhabited by the gods. After Julien takes him on as a special advisor, a power struggle for the kingdom ensues.

Wishing he was a father, King Julien convinces himself that Mort is his true heir and enters him in the Junior Gent pageant.

King Julien's best friend from the past, Rob, shows up out of nowhere and leads Julien back into his wild partying ways.

King Julien is tricked into giving away the resources of his kingdom by two rivals from his past.

When Julien learns that Maurice is advising the rats, their friendship is put in jeopardy.

Maurice reveals a book to Julien where stories of the past lemur kings are recorded. Unknown to him, Clover begins documenting his legacy with made up stories which are offensive to some.

Clover and Mort race to rescue their king as Julien tries to avoid the pirates' plank by showing off his prime "pirate recruit" booty moves. Meanwhile Julien's parents plan to sacrifice one of the lemurs to appease the gods.

King Julien tries to get rid of his parents, but when evil Karl traps them in the Love Gauntlet they must prove their family's strength to survive.

Clover wants to follow in her Grandma Rose's footsteps and compete at the dangerous Tournament of Doom, but King Julien forbids her to attend.

When Masikura convinces King Julien that the island is sinking, Julien believes building an ark is the only way to save his people.

King Julien clones himself but things take a turn for the worse when Morticus Khan, an evil warlord, unleashes an army of Mort clones on the kingdom.

When Detective King Julien searches for a missing Butterfish, he notices lemurs acting strange all around and realizes he has a serious mystery on his hands, so he must get the Mystery Solving Team back together.

King Julien tries to rig an election so that Maurice becomes Mango Prime Minister but soon realizes his opponent, Mort, has a better shot than everyone thinks.