Alden comes to learn Mary's biggest secret in the Season 1 finale. There are major repercussions as Salem nears the Grand Rite.
Fresh accusations are made against Alden, while Anne learns the truth about her father.
Tom warns Blackbeard that his condition is worsening in a gambit to get the pirate to reveal his plans. However, when Blackbeard accelerates his scheme, Tom is forced to play along. Meanwhile, Jagger turns to an unexpected resource to learn Blackbeard's location when all else fails.moreless
Increase gets closer to understanding who really runs things in Salem; at the same time, Anne finds herself in danger, and in need of Alden's help, while investigating a mystery.
When Jagger captures Kate on a trading voyage, Blackbeard sets out to find her and kill her rather than risk a pitched battle with the English. James, realizing what the commodore intends, asks Tom to go along and ensure that Kate is safe.moreless
Mary finds it difficult to get George back under her control; at the same time, Mercy's power is growing and she isn't afraid to use it.
The arrival of Cotton's father rocks the town of Salem; at the same time, Mary's power over George is compromised.
Romantic feelings between Mary and Alden intensify; Cotton deals with a unique accusation in the trials; and a powerful witch hunter makes his way towards Salem.
A revolutionary device called the Longitude Chronometer, a device that can tell a sailor exactly where he is in the world is stolen from the HMS Petrel by pirates lead by the legendary but supposed dead Edward Teach--better known as Blackbeard. Tom Lowe, an English spy aboard the Petrel, has been given orders to protect the device and to kill Blackbeard at all costs.moreless
Alden and Cotton come face-to-face with a real witch; Mary comes up with a solution to the discord within the coven.
Mary and her coven are at odds; Alden and Cotton come across a dangerous witches' relic.
Alden worries when an old nemesis arrives in Salem with secrets that could destroy him; and Mary loses her grip on Mercy.
Mary decides on a course of action after discovering who witnessed the witches' ceremony.
John investigates what's really going on in Salem as the fear over witches rises; and Mary prepares to execute a plan.
Rebecca and Doc are closer to finding the man who might be the key to finding the secrets behind the returning criminals. A discovery beneath Alcatraz brings Hauser closer to the truth.
Information surfaces and lives are at risk as Rebecca continues her dogged pursuit of Tommy Madsen.
Rebecca, Doc and Hauser search for an unknown '63 who's returned more violent than before.
Clarence Montgomery was the only innocent man in Alcatraz but he's returned and is committing crimes.
Herman and Pinky Ames, who almost escaped in 1963, return to Alcatraz in the present day and find something strangely wrong.
Sonny Burnett, a man with a dark side, who became extremely violent while at Alcatraz reappears.
Madison and Hauser look for Johnny McKee, the latest Alcatraz inmate to surface. He's a chemist with a vicious killer instinct. More details emerge about Madsen's grandfather, Tommy Madsen.
When convicted bomber Paxton Petty reappears to place bombs throughout San Francisco, the team take methods from the past and apply them to the present to find him.
An Alzatraz guard reappears who, although basically a good guy, is being asked to do bad things.
After a well known bank robber reappears and things go wrong, Rebecca must figure a way to get him out of the hostage-filled bank before anyone discovers who he really is.