Max attends conference about genetic engineering. She sees Lydecker at the conference, but he doesn’t recognize her. Before she can slip away unseen, the conference attendees are taken hostage by…

The team is called into battle unexpectedly when the Asgard homeworld is overrun by Replicators — which have evolved into a startling new form.

Sam and Dean investigate the murder of a lawyer and his wife, who claimed to have seen a ghost before they were killed. However, local authorities arrest the Winchesters after…