Watch Detective K: Secret of the Lost Island (2015) HD Full Movie Free on SolarMovie. Watch Detective K: Secret of the Lost Island (2015) online free. Joseon's top detective Kim Min attempts to track down those responsible for circulating massive amou...Joseon's top detective Kim Min attempts to track down those responsible for circulating massive amounts of counterfeit silver bullion in Joseon. He also tries to find the missing sibling of a young girl.