OliverandLucySinclairwereraisedontreasurehunts.Theirfatherwouldholdahunteachyear,sendinghischildrengallivantingaroundthehouseandislandtofindhiddenprizesandsecrets.But,likeallchildrendo,OliverandLucygrewup.Afterayearofestrangement,theireccentricfatherunexpectedlypassesaway,andthetwosiblingsjourneybackhometoputhisaffairsinorder.Oliverleavesbehindaverypregnantgirlfriend,Susan,andalessthansuccessfulsmallbusiness,whileLucyskipsoutonherstudies,whichsheismorethanhappytodo.Afteranightofuncomfortabletension,theymeetwiththeirfather'slawyer.Insteadofbeinghandedastandardwill,thetwoaremetwithsomethingunexpected...Atreasurehunt.OliverandLucydiscoverthattheymustsolvethehuntinordertoreceivetheirfather'sinheritance.Sobeginstheircalltoadventure.Onelasttreasurehunt.AstheSinclairstraversetheisland,fightingandfindingclues,they'reforcedtodeal...