Back to the Future: Titanic

Back to the Future: Titanic is the Titanic crossover between Star Trek, Back to the Future and Home Alone.

Act 1
In 1995, a treasure hunting team, led by Brock Lovett, dives to the wreck of the Titanic aboard one of the submersibles of Akademik Mstislav Keldysh in their search for a necklace with a rare diamond, known as the Heart of the Ocean. They discover a safe and upon opening it, fail to find the diamond except a nude drawing of a woman wearing the said jewelry. The discovery gains the attention of an elderly pottery businesswoman named Rose Dawson-Calvert and her granddaughter, Lizzy. After contacting the team and revealing her identity as the woman in the drawing, Rose and Lizzy are flown to the Keldysh where they meet the team and take up residence there. After the team exhibits the artifacts recovered from the wreck and gives forensic detail on the sinking, Rose reveals her story about her experiences onboard the doomed luxury liner.

At the McCallister home, Buzz plays a pranks on Kevin, so Kate and Peter call Marty McFly and Dr. Emmett L. Brown to watch over their youngest son. Marty and Doc pick up Kevin and ride on the DeLorean time machine back to 1912 where the Titanic launched. Meanwhile, Harry and Marv have made their way to Hill Valley, after recently escaping from a prison and plan their next scheme: to find the Heart of the Ocean. They find another DeLorean time machine which Marv christens the duo the "Time Bandits" and time travel back to 1912 as well.

In 2276, while Captain James T. Kirk is attending an emergency conference on Starbase 47, the USS Enterprise-A finds the wreck of the USS Titanic (NCC-1912) adrift. Mera and Chekov beam on the adrift ship and find the artifacts in the ship's archive vault. They are ordered by Spock back to the Enterprise-A in preparation for Kirk's return. Upon Kirk's return, he explains to the senior officers in the briefing room that the Titanic was ambushed by the Romulans. A class-M planet orbiting a rogue star floating through the Neutral Zone.

The Enterprise encounters with a rogue star. Due to the ship in warp speed, at Kirk's orders, the crew attempts to slow down and steer the ship around the star, only to perform the slingshot effect around the star. Everyone wakes up and Kirk wonders where they are. Spock informs that they time-traveled in 1912. Kirk orders the viewscreen activated and the image magnified and the sight they see on the screen surprises them all; a British passenger liner of White Star Line, RMS Titanic.

Star Trek

 * William Shatner as Captain James T. Kirk
 * Leonard Nimoy as Commander Spock
 * DeForest Kelley as Commander Dr. Leonard "Bones" McCoy
 * James Doohan as Commander Montgomery "Scotty" Scott
 * Nichelle Nichols as Commander Nyota Uhura
 * George Takei as Commander Hikaru Sulu
 * Walter Koenig as Commander Pavel Chekov
 * Leigh Lombardi as Lieutenant Mera
 * Majel Barrett as Nurse Christine Chapel
 * Grace Lee Whitney as Chief Janice Rand

Back to the Future

 * Michael J. Fox as Marty McFly
 * Christopher Lloyd as Dr. Emmett Brown
 * Claudia Wells as Jennifer Parker

Home Alone

 * Macaulay Culkin as Kevin
 * Joe Pesci as Harry
 * Daniel Stern as Marv
 * Catherine O'Hara as Kate
 * John Heard as Peter
 * Devin Ratray as Buzz