Ep 18. Zero Days

When a cyber attack hits the Department of Defense's cyber warfare unit, the NCIS team in Los Angeles must step in to investigate the breach. Agent Sam Hanna, played by LL Cool J, and his team quickly discover that the attack was far more sophisticated than they initially believed. The cyber criminals used a zero-day exploit to breach the system, meaning they exploited a vulnerability in software or hardware that the vendor is unaware of and therefore has not had time to patch and protect against.

As the investigation heats up, it becomes clear that the attackers have stolen highly-classified documents that could compromise national security. With time running out, the team races to identify the perpetrators and prevent them from causing further damage. Along the way, they must navigate the dangerous world of cyber espionage and deal with unexpected twists and turns.

Meanwhile, Agent Callen, played by Chris O'Donnell, is faced with a personal dilemma when he receives a surprise visit from his estranged father. As their relationship has been fraught with tension for years, Callen must decide whether to let his father back into his life or turn him away once again.

The episode is filled with suspenseful moments and high-stakes action as the NCIS team races against the clock to save the day. With top-notch performances from LL Cool J, Chris O'Donnell, and the rest of the cast, "Zero Days" is a must-see episode for fans of NCIS: Los Angeles and anyone who enjoys fast-paced crime dramas.