After their exciting discovery in Season 1, brothers Rick and Marty Lagina return to Oak Island and the strange, triangle-shaped swamp to look for more clues to this 200-year-old mystery. As they begin excavating the infamous Money Pit, a startling theory comes to light: could the treasures from King Solomon's Temple have been buried on Oak Island 2,500 years ago? Rick and Marty look for evidence to prove it, drilling deeper into the Money Pit. When a visitor comes to the island suggesting he may have discovered a secret method of getting to the treasure, Rick and Marty bring a team of divers to Oak Island to explore the legendary treasure shaft, 10-X. What they find and where they find it leads them closer to the truth, but will they escape the deadly curse that's said to protect Oak Island's secrets?