Inner Demons/Kids With Guns: Miami detectives uncover shocking secrets about a man murdered outside his own apartment. (S4, ep 2)
Loved To Death/Unmasked: In Memphis, Sgt Caroline Mason and her team respond to a convenience store shooting, where cameras captured the last few moments of a man's life. (S4, ep 1)
Drilling Down on Season 4: Rick, Marty and the Oak Island team meet up with Matty Blake to reveal new discoveries and discuss future plans.
Blood is Thicker (Part Two): In the season finale, the Lagina brothers wrap up their treasure hunt after making a momentous discovery. (S4, ep 16)
Blood is Thicker (Part One): The Laginas and their team make what could be the most important discovery in the history of Oak Island. (S4, ep 15)
Of Sticks and Stones: Rick and Marty Lagina face a major dilemma as they continue their search for the original Oak Island Money Pit. (S4, ep 14)
One of Seven: The Laginas and their partners make incredible discoveries at Smith's Cove and in the Money Pit. (S4, ep 13)
Hyde Park and Go Seek: Rick and Marty decide to dig a third hole at the Money Pit after Rick finds even more evidence connecting Oak Island to the Knights Templar. (S4, ep 12)
Presidential Secrets: Rick Lagina travels to the Franklin D. Roosevelt library to find out why the former US President was obsessed with Oak Island. (S4, ep 11)
About Face: The Oak Island team returns to borehole 10-X in search of new clues. (S4, ep 10)