Jo Evans plunges her family into a deepening mystery when she discovers a young girl on the night of an inexplicable plane crash and decides to protect her.
As Jo continues to search for answers, a mysterious man's appearance in town may cause problems for the family. Piper tries to understand her new abilities while connecting with the family.
A mysterious illness takes hold of Piper; Jo and Benny investigate a powerful tech mogul, Richard Kindred; Jo considers accepting help from an unknown source; Alex works to decipher a radio frequency code from Piper's plane crash.
Jo and Benny investigate the death of Kindred's former business partner. Mia helps Piper discover her powers. Alex wants to know why Ed is choosing to die.
The FBI arrives in Southold, complicating Jo's efforts to find Emily. Meanwhile, Alex and Piper hunt for answers on a road trip, and the family celebrates Mia's birthday.
Jo and Chris have to evade the FBI while investigating the cyber terrorists. Ed receives a treatment plan for his cancer that seems to good to be true. A mysterious woman puts Piper and the Evans family in danger.
The Evans receive information that could lead to Piper. Jo and Brooks follow this lead, Ed helps Mia as she tries to send Piper a message while Alex and Chris stumble upon a mysterious shipment in the harbor.
Jo and Brooks assemble an unlikely team as they attempt to communicate with Piper. Meanwhile, Piper is intent on saving Benny from Helen's mysterious mission, and Alex receives a life-changing offer.
Jo makes a high-stakes deal to take down Helen and keep Piper safe. Meanwhile, Helen attempts to replicate Piper's powers for herself, and Benny struggles to earn back Jo's trust before it's too late.
Jo and Brooks are in danger, and Piper's determined to help. With Helen's mysterious plan nearly realized, Piper recruits an unexpected team of allies to find them before it's too late.
