What if Tony came back in series 4 AU

PLEASE READ AND THEN WATCH IN HD. Effy calls Tony during her “mental breakdown“. He knows that something is wrong, he decides to help her. Later we can see some flashbacks of Tony's accident. At the end Tony runs to help Effy, Cook is the one who saves her. The last scene shows three of them driving to the hospital. ------------------------------- comments are really appreciated :):):)