Before the world falls in love with her in Iron Man II, learn how it all began for the Black Widow! As Natalia Romanova races across the globe to uncover the mystery behind the threat targeting everyone she's ever loved, Clint Barton faces death! Plus: Tony Stark, the Crimson Dynamo, the Winter Soldier, and even Nikita Kruschev get caught in the Widow's wicked web of intrigue, espionage and danger!

Rated T+