Mockingbird accompanies Hawkeye, and Black Widow during their mission to capture the Hulk, acting as the pilot for their prison transport. After the helicraft is damaged by falling debris, the Hulk saves Barbara's life by catching the transport before it can crash into the ground. This action ultimately leads Hawkeye to believe that the Hulk isn't the monster that he appears to be.
After Hawkeye left S.H.I.E.L.D. and joined the Avengers, Mockingbird replaced him in the black ops team.
Later Main Team Members