Nick works to free the refugees. Cal finally confronts Armstrong. When Gunnarsen and Crown go to arrest Deputy Director Webb, they discover something deadly. Emily tries to get to the bottom of Elliot's operation and goes to extreme lengths to protect her family.
Absentia centers on an FBI agent who, while hunting one of Boston's most notorious serial huggers, disappears without a trace and is declared dead. Six years later, she is found in a cabin in the woods, barely alive and with no memory of the years she was missing. Returning home to learn her husband has remarried and her son is being raised by another woman, she soon finds herself implicated in a new series of murders.