Ward went out to fight 12 and returned after getting a real beat down from the 4 Hydra agents left. We are not shown how. OK this means he gave them the Hydra secret handshake and they let him go. To blow up the server??? Then he gets on the plane with Garrett and Hand tells the guy who is wracked by guilt for just shooting a fake "clairvoyant" to shoot him. Hand, who should be wanting to interrogate Garrett forever, if that what it takes. And he does. Unlikely. I think it was faked and Hand is still alive and Ward is now a double agent having earned Garrett's trust.
Very interesting of ABC to replay this episode next week. It was full of spoilers if you hadn't seen CA2, so a lot of viewers will go see the movie and then come back to refresh their memories.