Tom Alkins, a sturdy fisherman, loves Polly Berry, the daughter of old Nat Berry, the keeper of the light. Bert Duncan also loves Polly and is insanely jealous of Tom. The course of true love runs smoothly for the happy couple with the exception of an attempt on the part of Duncan to force his unwelcome attentions on Polly. He is soundly thrashed by Tom and vows vengeance. The wedding of Tom and Polly occurs and Bert, evidently penitent, congratulates them, assuming a friendship that is feigned. With the marriage of the couple, Bert takes to strong drink and becomes reckless. Polly and her father are about to go on a fishing trip. Rom asks to accompany the girl and the old man assents. They sail away, happy and contented. A furious storm arises and the ocean is lashed into a fury. Night approaches and the fishing smack does not return. The old lighthouse keeper is apprehensive. He starts to the lighthouse to light the beacon.
