Eris only recently let the vanguard send Guardians to finish what she started, but so far no luck. Leo's father Draxis thought his fireteam could do it. They fail and they all return, except for Draxis. Just Ron returns. Leo takes it upon himself to go and save his father with Ron by his side. Cayde and Shaxx follow close behind without his knowing. He finds his still alive father after tearing thru Hive all the way to past the bridge. With Cayde and Shaxx they finish Crota. Seeing his son's strength, he gives him Ron to be the ghost never had.