Franklin Hall is a protected S.H.I.E.L.D. asset who was the teacher of Leo Fitz and Jemma Simmons. Franklin ends up abducted from a fully-protected convoy by a military unit (who used some sort of gravity weapon) and taken to a compound in Malta owned by his former research partner Ian Quinn (the head of Quinn Worldwide), who wants Hall to complete gravity fields in Quinn's device powered by Gravitonium. When Phil Coulson finds Hall, he is in the process of sending the gravity-control device and Quinn's house into the ocean, endangering the guests in Quinn's compound. Hall reveals to Coulson that he orchestrated his own kidnapping and states that the gravity element is too powerful for S.H.I.E.L.D. and Ian Quinn. After Coulson shoots the glass blocking the device, Hall falls towards the device where he is apparently consumed. The Gravitonium and the device it powers ends up locked up in S.H.I.E.L.D. custody where it is revealed that Hall is still alive inside the cluster of Gravitonium.