When Mindy's brother, Michael was then taken into S.H.I.E.L.D. protective custody for rehabilitation after his physical and mental condition began to deteriorate due to the Extremis element in the Serum he was injected with as part of a project to reproduce the Super Soldier Project, Michael's son Ace was taken to live with Mindy. 
After the incident in Los Angeles, Ace remained with his aunt, but he kept in touch with his father until Raina, a member of the Project that granted Michael enhanced powers, kidnapped Ace.
According to Skye, when Deathlok asked her about Ace's safety, a contingent of S.H.I.E.L.D. agents was protecting him and Mindy. Deathlok doubted her veracity since S.H.I.E.L.D. was now defunct.