Will and Faith’s investigation into a small-town murder has large implications when a connection is drawn to a decades-long, covered-up cold case. Meanwhile, the death of a security guard perplexes Angie while she contemplates an unexpected dinner invitation from Ormewood, which may rehash some memories from their past.

As threats against Amanda escalate, Will investigates, narrowing down a list of potential suspects. Amidst the tension, Amanda is forced to confront moments from her past. Meanwhile, Ormewood struggles in Gina's absence.

Unleashed by a domestic terrorist group, a mysterious biological attack runs rampant in Atlanta. As Will and his team race to contain the threat and save countless lives, he's forced to confront the complex dynamics of his own family.