The Fisherman's Secret Dragon

Grandpa gives four million to his eldest and third sons, leaving only an old sea snake for Daniel Cole and his grandson. They are ridiculed, unaware Sandy is a spirit/Dragon that guides to fishing grounds. Sandy saves Finn Cole, leading them to rare seafood and fishing spots. With Sandy's protection, they prosper, helping neighbors. Greedy brothers sabotage them, suffering consequences. Daniel Cole helps his brothers. Grandpa reveals his purpose, family reunites, village prospers.