Iron Man 4 (2025) continues the legacy of Tony Stark’s influence in the Marvel Universe following his death in Avengers: Endgame. The story introduces a new generation of heroes, with Riri Williams (Ironheart) taking on the mantle of Iron Man, guided by Stark’s AI, J.A.R.V.I.S., and her own innovative genius. A new global threat arises, testing Riri’s ability to step into Tony’s shoes and navigate the challenges of being a young, untested hero.

Alongside familiar characters, she faces high-tech adversaries and moral dilemmas, grappling with her responsibility to protect the world while living up to Stark’s legacy. The film delves into themes of mentorship, legacy, and the evolution of technology and heroism.