Manu Uncle

Manu is a Kollam-based astronomy researcher and lives in the area with his family. Antony and Mary are his neighbors, and their children Dany (aka Lother) and Ikru join a four-member team led by Dany during their vacation. The kids enjoy their time together, pull pranks on Manu, and have a chance encounter with the actor Mohanlal.

During a visit to the Art Museum, the Crown of Marthanda Varma is stolen. Ikru spots the robbers Gomez, Appu, and Kittu but cannot describe them to his Grandpa. Manu uses his advanced communication setup to overhear a plan between Kittu and Gomez to loot Marthanda Varma's Sword and informs his father.

Manu informs his father about the plan, and they rush to Padmanabhapuram Palace to intercept the thieves. They hope to prevent the theft and recover the artefact before escape.

Gomez has already grabbed the sword when Manu and his father arrive. A fierce fight breaks out; Manu is injured in the clash, and his father continues the pursuit alone. The robbers push forward with their escape.

In a premeditated move, the robbers stage a lorry accident that results in the death of Manu's father. The loss hits Manu and the family hard as the criminals vanish into the night.

Khader, a young orphan, witnesses the fatal accident and later encounters Manu's group. He shares what he saw and hints at the gang's involvement, pushing the children to investigate further.

Manu intercepts a portable radio conversation between Gomez and Ravunni and learns Ravunni's identity. Ravunni warns Manu to stay away from his illegal export activities and threatens that he will meet Manu's father’s fate.

Ikru's drawing of Gomez draws the attention of Manu and Ravunni, who grow tense at the hint of the kids' involvement. To verify his suspicions, Manu decides to break into Ravunni's house and search for evidence.

Guided by Khader, the children venture to the gang's hideout and discover that Ravunni is the mastermind behind the operation. They realize the danger and the scale of the plot.

The gang notices the trespassers and Ravunni orders his men to kill them. Manu arrives at the scene with SI Minnal Prathapan, a bumbling but well-meaning police officer, and helps save the children from the criminals.

A confrontation ensues and the robbers are overwhelmed by the police. The criminals, including Ravunni, are arrested, bringing the operation to a close.

With the criminals in custody, the truth behind the murder comes to light and the children, along with Manu's family, reflect on the power of teamwork and curiosity. The case closes and the community begins to heal.