Looking for a story in which Sam has an older sister that's been missing for years. Keller sends a special team to try and find her, seeing as she was in the army or something like that. She's rescued and in bad shape because she's been tortured, and she should have died but Primus interfered. She reunites with her brother, meets the Autobots, and I think I remember her making Prowl glitch at some point when she says she's met Primus. Anyone know the name of the story?