Frontline's second installment picks up as Vladimir Putin's grievances against Washington curdle into active retaliation, tracing the operation that became Russian interference in the 2016 American election. Interviews with former CIA and NSA officials, journalists, and Russian dissidents lay out how hackers breached the Democratic National Committee, how the stolen material surfaced through Guccifer 2.0 and WikiLeaks, and how Kremlin-linked trolls and bots pushed it into American social media feeds. The film revisits the Obama administration's slow, contested response, weighing warnings from intelligence agencies against political caution in an election year. Archival news footage, campaign clips, and on-camera testimony from people inside the agencies at the time reconstruct a timeline that runs from the hack's discovery to Election Day and beyond. The series treats Putin's actions as the culmination of a personal history with American power rather than an isolated stunt, closing on the open question of how much damage was actually done to American institutions and trust.