Seven rising young men - The Seven as they are to be known later - enter into an agreement: Each of them is to put up $5000 for twenty-five years and at the end of forty years the money is to be divided among the survivor., share and share alike. Forty years pass, of the seven but three remain. One is Benjamin Maynard, who has prospered exceedingly but who wishes, naturally, to obtain his share of the huge fund to turn it over as wedding gift to his granddaughter, Marcia Maynard and her fiance, Titus Jones, who is Marcia's cousin. The match has been encouraged by Benjamin Maynard but it doesn't at all fit in with the plans of the young people. Marcia has a sincere liking tor Titus but she is till heart-whole and fancy free. His attractions, however, have been given to Beverly Carroll, a charming little society bud and Marcia determines to do everything in her power to aid him in his wooing. The day for the settlement draws near. Benjamin Maynard departs for the house in in which, forty years before, had been designated as the meeting place for the survivors and Marcia goes to New York to attend to some business for her grandfather. At the Hotel she receives a a mysterious telegram him in which he hints at danger and instructs her to come at once with Titus. Marcia is panic-stricken. She telephones Titus. Her fears are doubled when she finds that it will be impossible for him to accompany her a he is to be married in fifteen minutes. A mysterious stranger endeavors to read Marcia's letter over her shoulder. Later he enters her room the hotel apparently in search of documents. His attempts to bind and gag her when she screams. The first to come in response to her frightened shriek, is young Sam Jefford, former ace in the American Flying Corps. Instantly a fondness springs up between these two. Marcia explains her predicament to and asks him to accompany her to Maine in place of Titus. He gladly accepts. Arriving there, Marcia is disconcerted by the fact that her grandfather is not present to meet her. Nor, when they reach the mansion house, is there any explanation to be found there. Joseph Le Blanc, custodian of the fund created by the Seven, says that the only ones present are Mark Opie who is confined to his bed, a victim of typhoid, and Amos Buckner, also suffering from some mysterious ailment. There are two other men there whose presence need an explanation. One is introduced as "the Doctor." The other, lurking in the shadows of the mysterious mansion, Marcia identifies as her New York assailant. Suspicion points to Le Blanc as the sinister mind behind these mysterious happenings. That night Mark Opie dies, but before he passes, he tells Marcia that her grandfather is actually there and that her search for him must be unrelenting. That night there is frenzied detective work by Maria and Sam. The latter, by following the mysterious man, locates Benjamin Maynard bound hand and foot in a lonesome cabin. He releases him but is worsted in a fight with the stranger. Early the next morning, he comes to, to find that he and Maynard have been tied during the night to two trees that stand on the rim of a sheer precipice. The stranger tells Sam he will release him if he will promise to do away with the old man. Sam spurns his offer and finally manages to free himself. There is another stirring fight in which the mysterious man goes over the cliff to his justly-deserved fate. Sam cuts Benjamin Maynard's fetters and half drags, half carries him to the meeting place of the survivors where the nefarious plot which has been conceived, is exposed. Maynard is actually the only survivor. The so-called Buckner is an impostor who has done away with the real Buckner. He has been aided in his evil designs by his two sons; one "the Doctor;" the other, the man who, after his struggle with Jefford, has gone to answer for his wrongdoings at a higher court. All the plotters are taken in charge by the authorities, brought in and held in readiness, Le Blanc on account of his suspicion of their actions. And so Maynard comes into what is rightfully his. As the sole survivor, his share is a tremendous fortune, one third of which he sets aside for the families of the men who entered the pact, one third for charity. The remaining monies are to be turned over to Marcia and the gallant cavalier who has served her so faithfully and well, and who receives a his reward the heart and hand of the lovely lady.