Ridley investigates a jewelry heist that turns into a murder case, working with an undercover source whose cover soon risks being compromised. Ridley checks out the manager of the jewelry company, thinking it could've been an inside job.。As the 100th anniversary of Titanic's sinking approaches, a team of scientists, engineers, archaeologists and imaging experts have joined forces to answer one of the most haunting questions surrounding the legendary disaster: Just how did the "unsinkable" ship break apart and plunge into the icy waters of the North Atlantic。