TMDb/The Night Agent TV Shocking twist: Peter Sutherland's trusted ally dies in The Night Agent Season 3. See how this pivotal event changes everything. March 23, 2026 AceShowbiz - The Night Agent has returned with its highly anticipated third season on Netflix, delivering the same edge-of-your-seat spy thriller action that captivated audiences before. However, early in this season, viewers are met with a shocking and emotional twist: the sudden death of Peter Sutherland's most trusted ally, Catherine Weaver.