Dr. Nate Heywood, an unconventional historian, makes a shocking discovery. Nate then seeks out Oliver Queen for help to find the scattered Legends. Once reunited, they try to protect Albert…

Alec joins Carlos and the VPD. Kiera and Garza form an alliance.

Sam and Dean race to help a friend in need. Meanwhile, Mary is concerned for Jack’s well-being, and Castiel enlists help from Jo/Anael to track down a miracle.