M.O.D.A.M. appeared to have been the A.I.M. agent S.O.D.A.M. (once believed to have been Maria Troyvana, first wife of Henry Pym) in an upgraded form. After being modified in a lab at AIM headquarters, M.O.D.A.M. was sent to retrieve the quantum bands of Quasar for A.I.M.'s client Doctor Minerva. M.O.D.A.M. failed at this mission, and was later assigned to retrieve Diamondback, Asp, Anaconda, and Black Mamba for another of A.I.M.'s clients, Superia. M.O.D.A.M. succeeded this time but Superia's plans were thwarted and M.O.D.A.M. was defeated by Captain America. Later when AIM Island was invaded by Captain America, The Falcon and Diamondback, M.O.D.A.M. .failed to prevent former client Superia from destroying a Life Model Decoy of the ruler of A.I.M..