Season 1

Zero Day (2025), Season 1 is a Netflix political thriller you can watch online on iFILM — six episodes led by Robert De Niro as former President George Mullen, pulled out of retirement to trace a cyberattack that brought the country to its knees.

The "zero day" strike knocks out power, transport and communications at once, and people die. Mullen is handed an emergency commission with sweeping authority, and that power is exactly where the season's tension lives. His first arrests trigger backlash — TV pundit Evan Green goes on the attack, the financial system shudders, and Speaker Dreyer pushes to replace him. The closer Mullen gets to the truth, the less he can trust his own memory. The investigation pulls apart a web of lies wrapping politics, the media and his own family. By the sixth episode, the choice in front of him is brutal.

A deep bench — Jesse Plemons, Lizzy Caplan, Angela Bassett, Joan Allen — keeps this a talky, contained drama rather than an action piece. It hits hardest if you worry about disinformation and how fragile institutions really are. Stream Zero Day Season 1 online on iFILM.