Moshi Monsters: The Movie

Roary Scrawl proclaims his plan to debut with a documentary about Monstro City. Katsuma, Poppet, and their friends discuss joining as stars and shaping the film's cast. The announcement sets the story in motion and establishes the film's ambitious tone.

Buster Bumblechops reveals the legendary Great Moshling Egg will be displayed at his museum, with hatch date later in the week. Poppet suggests including the egg in the documentary, while Katsuma tries to position himself as the star. The idea creates tension over the egg's importance and the film's direction.

Strangeglove and his sidekick break into the museum and poach the egg, vandalizing the display. He broadcasts a hologram declaring he will destroy the egg unless a mutating formula is supplied. The team resolves to track down the three ingredients to save the egg and Monstro City.

The group sets off on a raft journey toward Music Island to reach Goombla-Goombla Jungle and collect the mutating ingredients. They navigate the dangerous route as Roary documents their progress and the stakes rise. The expedition marks the start of their scavenger hunt across the Swooniverse.

In the jungle village, they enter a limbo contest and win the prize Oobla-Doobla, the first of the required ingredients. The win boosts their morale and earns them a tangible lead in Strangeglove's plan. The team grows more determined to complete the recipe and recover the egg.

The team is lured into the Candy Caves and nearly trapped inside giant candy balls by Sweet Tooth, a greedy clown with hypnotic powers. Diavlo manages to break them free, and they escape in a frantic railway chase. However, Diavlo, Zommer, and Luvli are captured by CLONC's Scare Force blimp.

Katsuma, Poppet, and friends reach Jollywood and meet the Moshling superstar Bobby Sing-Song, who offers encouragement and hints about Kerfuffle teleportation. Poppet stores tears in a jar, moving them toward the ingredient collection. Furi's accidental misstep breaks the Kerfuffle circle and they end up in a Scare Force blimp prison.

The remaining team members flee to the Moshi Mountains, braving a blizzard and an avalanche. They struggle to stay warm and eventually locate the frozen rainbow crystals needed for the mutating formula. The journey tests Katsuma's leadership and the group's resolve.

At Mount Sillimanjaro, the group presents the ingredients to Strangeglove, who refuses to surrender the egg and summons Glumps to attack. Katsuma uses martial arts to retrieve the egg and fend off the creatures, but loses it during a trick with Blinky. Strangeglove escapes via elevator, setting up the next phase of the conflict.

Strangeglove captures Katsuma and Poppet in his underground lair and threatens them with torture. Mr. Snoodle bursts in to rescue them, and together they devise a plan to free all Moshlings from the Glump-O-Tron 2000. The plan hinges on unlocking a prison using a whistle, which Katsuma initially cannot whistle.

The Moshlings unleash an escapee army to confront the Glump army in a climactic confrontation. They manage to stop the mutation device, using the gathered ingredients against Strangeglove's plan. The Scare Force blimp overloads, losing control and crashing in a spectacular explosion.

The Great Moshling Egg hatches into Mrs. Snoodle, and Katsuma finally whistles for the first time as the hatched creature is revealed. Roary finishes the documentary as the group is celebrated by Buster Bumblechops, who cuts the ribbon for the egg's official hatch. The epilogue hints at Strangeglove and Fishlips stranded in Dessert Desert, Zommer's rise as a rock star, and a temple filled with unhatched eggs waiting for future adventures.