After a long break, the students of Siragugal school return to classes. With the help of his juvenile warden, Kalai gets a chance to restart his life.

Commotion builds as the students fight for the class leader position. Meanwhile, the school correspondent receives an alarming letter.

The old students of Siragugal dare the newcomers to play a game against them. The teachers await a shocking announcement from the principal.

Startled by the recent issue, Sakthivel approaches his son, Guna, for help. At school, the students meet again for a final rematch.

The people of Siragugal school encounter difficult and unpleasant situations simultaneously. Elsewhere, conflicts arise between Kalai and Gowtham.

While friendship seems to blossom between Guna and Malar, Kalai's first meeting with Abi's family goes wrong. Meanwhile, Sakthivel receives an offer from his rival.

Sakthivel loses hope as a staff member departs from the school. Guna faces an unexpected crisis at the bank.

Gowtham reveals Kalai's secret to the class. Amidst the ongoing confusion, Sakthivel announces his plan to celebrate Siragugal's silver jubilee.

In fear of losing their domination amongst their classmates, Gowtham and his team discuss a strategy. The principal plots to ruin the school function.

In a peculiar turn of events, Kalai gets framed for theft. Meanwhile, an unexpected guest visits Siragugal and the school is in for a surprise.

Abi reveals the truth behind the theft and proves Kalai's innocence. However, he faces a tough time as Gowtham's friends humiliate him at his workplace.

Sakthivel gets overjoyed as his former student Jerry returns to Siragugal as a teacher. On her way to school, Abi panics being followed by a certain someone.

Jerry wins the hearts of students with his unique teaching style on his first day. He also makes an attempt to reunite students for the upcoming school function.

Malar feels heartbroken as the information on Siragugal's ex-students gets erased. Nandhini goes into shock when she finds her mother in an unconscious state.

Jerry comes up with an idea to bring the ex-students together and shares it with Malar. Elsewhere, Aadhi troubles Abi and forces her to accept his love letter.

Abi's warning to Aadhi backfires as he threatens to commit suicide. On the other hand, Gowtham and his team learn about Siragugal's famous alumnus.

As Aadhi threatens to hurt himself, Abi reluctantly accepts his love proposal. Sagayam steps in to help Gowtham, and his friends contact Ashok, a popular celebrity.

Naachiyappan visits Guna with a compelling offer in order to persuade his father to hand over Siragugal school to the former. Sagayam and students make an attempt to meet Ashok.

Abi gets heartbroken when Aadhi threatens to share her photographs on social media. At school, Jerry employs his methods to encourage cooperation between Kalai and Gowtham's teams.

The principal provokes the students' parents to give complaints about the school and management to Sakthivel. Kalai gets worried about Abi and pays her a visit.

When Aadhi tries to misbehave with Abi, Kalai shows up and saves her. Malar visits Guna at his house to obtain photographs of Ashok.

After learning the truth, Sakthivel counsels Kalai and urges him not to repeat the mistake. Gowtham's friends get suspicious when Sagayam claims to have received a call from Ashok.

As the warden condemns Kalai for his misbehaviour, he promises to control his anger. Shocked by the viral response to Ashok's post, Gowtham rushes over to inform Jerry about it.

On seeing Sakthivel happy, Malar decides to hide the second warning letter from him. Kalai gets into a pickle when a vendor backs out of the function at the last moment.

Happiness knows no bounds for the people of Siragugal as the alumni attend the silver jubilee event. While Guna and Bullet spy on the guests, a special someone interrupts them.