The Titanic mission

"Luke, Julia, David, and Isabel are headed to the deck of the doomed Titanic. Their mission? Capture a shot of the sinking ship, then come right back. The only problem is, once they arrive aboard the ship, the four friends can't agree on what to do next. Should they try to save the passengers? Or maybe bring back a priceless book before it sinks with the ship?"--Provided by publisher.