Nature's Weirdest Events (2012)

S1E13 The Stone

Caine meets Isaac Montola, a former slave from Brazil who possesses a unique fighting technique that intrigues him. When Caine steps in to rescue Isaac during a violent altercation, a valuable gem is accidentally dropped. This incident triggers a series of events that entangles a grieving widow and her children, along with a groom-to-be who has a talent for playing the piano.