Marine wife Erin Corwin was just 19 years old when she disappeared in California’s Joshua Tree National Park. Nearly two months later, her body was found in an abandoned mine in the unforgiving desert, and suspicions quickly fell on a fellow Marine. “48 Hours” and “NCIS” join forces, merging the award-winning journalism of one of the most celebrated true crime news programs with the world’s #1 TV franchise, to bring you the real-life cases that NCIS agents will never forget. This 6-episode premiere season of “48 Hours: NCIS”, hosted by CBS News correspondent Natalie Morales, untangles this twisted story of infidelity and betrayal that led to Erin’s tragic end.