Barbara "Bobbi" Morse was one of the most capable S.H.I.E.L.D. agents. Despite the heavy casualties S.H.I.E.L.D. took during HYDRA's attack on it, she stayed loyal to her oath and continued her service in the remains of S.H.I.E.L.D. under Robert Gonzales. However, as another faction of S.H.I.E.L.D. led by Phil Coulson emerged, she was sent to infiltrate it. Assigned by Coulson, she spent some time on an undercover mission in HYDRA Laboratories posing as the Chief of Security under Sunil Bakshi but eventually broke her cover to save another undercover agent, Jemma Simmons. After rejoining Coulson's S.H.I.E.L.D. she continued with her original mission. Loyal only to Gonzales, she recommended the attack on Coulson's base, which marked the beginning of the open war between the two S.H.I.E.L.D.