Guess what? Alistair Oh had a adopted daughter that no one heard of. What happens after Alistair Oh gets killed during the capture and she is left alone? She decides to give a visit to Amy and Dan Cahill, whom she saw a couple of years ago when they visited her home. There is a reunion in Grace's mansion. All the younger generation of the Cahill branches are coming to Attleboro. The Kabras, the Holts, the Starlings and the Wizards. What will happen when the unknown Cahill meets the original gang?