In the third season finale, Audrey, Nathan and Duke square off against the Bolt Gun Killer and Audrey's own tragic fate.
As Duke's volatility threatens to unleash unprecedented chaos on Haven, the pressure is on for the CDC doctor to develop a cure for the troubles.
Charlotte makes progress towards developing a cure for the troubles, but it might be too late as Duke's condition takes a turn for the worse.
As Audrey's health deteriorates, Nathan races to find a cure for the mysterious illness before it is too late.
