Police officer Arjun Ramachandra is assigned to investigate a hit-and-run case involving Michael and his pregnant wife, Jessica; Michael is devastated by the death of their baby; Jessica falls into a coma.

Michael moves Jessica to a hospital in Chennai for brain surgery. Arjun finds a personal connection to Michael's accident and detains a key suspect.

Arjun finds details of an investigation that connects Michael's accident to a foiled terrorist attack; SI Vinod discovers that one of the people involved in the crime, Bharath, may have been wrongly accused of killing a journalist.

Arjun discovers that Akbar, a retired police officer, is also involved in Michael's case; when Jessica wakes up after surgery with amnesia, the doctor advises Michael to talk to her about their past in order to bring back her memories.

Arjun and the team interrogate Mr X, the driver responsible for running over Michael and Jessica. Bharath kidnaps SI Lokesh. Akbar meets Aslam and Junaid, the minds behind the terrorist organisation.

Arjun is ordered to close Michael's case and focus on investigating the recent deaths of two police officers; Michael is shocked by the closure of the case.