Agents of S.H.I.E.L.D.: What If...

"What If..." is the sixteenth episode of season four of the action television series Marvel's Agents of S.H.I.E.L.D., and the seventy-eighth episode of the series overall. It was directed by Nina Lopez-Corrado with a script written by Craig Titley. It first aired on ABC on Tuesday, April 4th, 2017 at 10:00 pm.