Complete story — includes the ending
Coulson and Mack locate Agnes Kitsworth, Radcliffe's former lover and partner. Radcliffe left Kitsworth after she was diagnosed with terminal cancer and modeled Aida after her. Coulson convinces Kitsworth to meet with Radcliffe. In case Nadeer is an Inhuman like her brother, Ivanov sends Watchdog Tucker Shockley to expose her to terrigen (provided by Radcliffe), but the substance transforms him instead. Shockley explodes, killing Nadeer, but then his molecules reassemble. Ivanov agrees to use Shockley's new ability against S.H.I.E.L.D. Radcliffe meets with Kitsworth and convinces her he can save her life if she escapes with him before S.H.I.E.L.D. captures them. Daisy confronts Shockley and distracts him long enough for Fitz and Simmons to contain him in a specially-made device. Ivanov uses this as a distraction to attack and kidnap Mace, who has learned that, each time he uses his super-serum, there is a chance that it will kill him. As Kitsworth dies from her cancer, Radcliffe places her consciousness in the virtual "Framework" with May.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Agents of S.H.I.E.L.D. season 4. HTML formatting and reference markers removed. · Content license