Marla, portrayed by Anya Taylor-Joy, is a young woman who once harbored dreams of exploring the world after high school, but tragedy has made her overly cautious and responsible. With the loss of their parents in a car accident, Marla has dedicated herself to caring for her younger brother, Charlie, played by Gabriel Bateman. As time passes, Charlie feels increasingly distant from Marla, who restricts his enjoyment of life in an effort to protect him.
One fateful night, Charlie sneaks out to visit a captivating Playmobil exhibit at a toy museum. With their phones linked, Marla hastens to find him, only to arrive and scold him for his adventurous spirit. In a tense moment, Charlie exclaims that Marla has stifled all fun in their lives. Suddenly, a lighthouse radiates light over the exhibit, triggering a magical event that transports them into the enchanting Playmobil world.
Now avatars in this vibrant realm, Charlie becomes a formidable Viking warrior while Marla retains her own form. During a chaotic Viking battle, Charlie discovers his newfound strength and aids in securing victory for one faction, leading to a grand feast in his honor. However, this celebration is disrupted when a band of pirates, working for the tyrannical Emperor Maximus played by Adam Lambert, snares Charlie and spirits him away.
Determined to rescue her brother, Marla pursues the pirates on horseback. In a tumultuous chase, she is thwarted by a reckless truck driver and loses her horse. Undeterred, she commandeers the truck in a frantic bid to track down Charlie, but the pirates elude her.
In her quest for help, Marla encounters Del, brought to life by Jim Gaffigan, a beleaguered food truck driver who is desperate to settle his debts with an imposing figure, Glinara, voiced by Maddie Taylor. After demonstrating Viking gold she gleaned from the battlefield, Del joins Marla in her mission to locate Charlie. Along the way, they cross paths with Rex Dasher, played by Daniel Radcliffe, a secret agent and Del’s old friend. Together, they infiltrate the notorious SKULL headquarters to gather intel on the recent character disappearances.
Their investigation leads them to a shocking discovery: Glinara is behind Charlie’s kidnapping, having sold a device used by the pirates to Maximus. Rex becomes captured, while Marla and Del face escalating odds in a race against time to save Charlie. Fueled by the urgency of the situation, Marla rallies a group to confront the nefarious Emperor, who has imprisoned Charlie and other characters as part of his brutal plans for entertainment.
Just as Charlie is set to battle a monstrous T-Rex in the Coliseum, he and Marla unite their efforts to escape. They creatively use Del's pink hay to neutralize the threat, transforming the fearsome dinosaur into a gentle creature. With the chaos that ensues, Maximus finds himself imprisoned by Rex and the other liberated warriors, and the team savors their hard-earned victory.
In the end, Marla and Charlie return home, reassured by the bond they have restored within a mere five real-world minutes. Their journey has mended the rift between them, promising new beginnings. As the credits roll, a humorous twist leaves viewers with a hint of Maximus's return, cleverly setting the stage for possible future escapades.
