Santiago did not caught any fish for 84 days. Santiago lost his helper, Manolin since the 41th day because his parents questioned Santiago's fishing abilities.
On the 85th day, Santiago sets out to fish at somewhere far in the Gulf Stream.
He eventually hooks a fish, but can't managed to pull the fish out of the water, and the fish is pulling the boat farther out.
Santiago kills the marlin after two days of battle and ties it on his skiff. He can't wait to show Manolin the marlin that he had caught.
Unfortunately, on the way back home, the marlin is attacked by multiple sharks as they want to eat its flesh. Santiago tries to fend off the sharks but failed. He ended up returns home with the marlin's skeleton.
Santiago tells Manolin the incident that he had been through. Manolin promises from now on they will fish together.