HYDRA showed A.I.M. how to defeat Tony Stark's security in exchange for an army of Hulkbuster battlesuits based on the Iron Man armor.

Nick Fury wants you to take out HYDRA's leadership—specifically, the Mandarin—to keep them from causing untold damage with this new firepower.

Start by disabling the HYDRA Security System so we can get more agents down to the base safely. A S.H.I.E.L.D. agent is on location to brief you on the rest.

• Travel to HYDRA Island
• Speak to S.H.I.E.L.D. Agent Christine Legg
• Disable the Security System
• Enter Hulkbuster Armory
• Defeat Madame HYDRA
• Destroy the Hulkbuster Suits
• Enter Mandarin's Throne Room
• Defeat Mandarin
• Return to Nick Fury