Lost (season 6)
Now centuries later, among the survivors, the Smoke Monster assumes the form of John Locke, returned to the island in a coffin. This Locke had convinced Ben to enter the seaside cave and stab Jacob, who fell into the fire and died. With many survivors believing that Locke has been resurrected, they follow him in various plans to leave the island. In one plan, they overthrow the guards at Widmore's submarine, and leave the island, unaware that a time bomb is inside the submarine. Jack (the doctor) discovers the time bomb, advising them not to disarm it while reasoning that the Smoke Monster cannot kill anyone directly. Instead, Sawyer (Ford) refuses to listen and pulls the bomb wires, which, instead, causes the bomb to count down faster. Sayid grabs the bomb and runs through the submarine, sacrificing himself to shield the others from the bomb blast. However, the bomb splits the submarine walls, and while sinking, Sun-Hwa is trapped in the wreckage, but Jin stays with her, vowing to never leave her side again, as they both die underwater.Jack swims, with a breathing tube, to the surface and back to shore. He tells the rest that Sun and Jin did not escape. In anger, Kate vows to kill John Locke, for what he has done to their friends. Sayyid (the  Iraqi guard), Richard, and Miles (son of the DHARMA leader) go to the other island to destroy the airplane. However, crossing at sea, they find the pilot adrift, who convinces them to repair the airplane to escape later.