Much of the plot revolves around Peter Parker grappling with a world that doesn't know how to move on without Iron Man and the E.D.I.T.H. technology Tony left behind.

After five years in semi-retirement, Tony helps develop time travel. The film culminates in his ultimate sacrifice to defeat Thanos, uttering the iconic line, "I am Iron Man". Legacy and Post-Endgame Impact (2019–2021)

Acting as a mentor, Tony provides Peter Parker with high-tech suits and tough-love guidance.

Set six months after Tony reveals his identity, he battles declining health caused by his arc reactor and the vengeful Ivan Vanko. This film introduced Black Widow (Natasha Romanoff) and recast War Machine (James Rhodes) with Don Cheadle.

Following the traumatic Battle of New York, Tony struggles with PTSD and a global terrorist known as the Mandarin. It remains a pivotal look at the man behind the machine, concluding with his decision to destroy his current arsenal. The Avengers and Major MCU Appearances

Tony appears via archival footage in the premiere episode, "Glorious Purpose," reminding audiences of his role in the 2012 timeline.

Tony Stark served as the financial and technological backbone of the Avengers, appearing in several key crossover events.

Stark leads the faction supporting the Sokovia Accords, resulting in a fractured Avengers team and a deep personal rift with Steve Rogers.