Marine One locates the I. rex skeleton.
"Marine One" was the call sign of a two-man mini sub used by two of Eli Mills' mercenaries in their attempt to retrieve a bone from the skeleton of the Indominus rex from the Mosasaurus lagoon. One mercenary uses a large claw to grab onto a rib bone, the other used a circular saw to separate it from the skeleton, and then sent it to the surface using an inflatable device with a tracker so that the mercenaries helicopter could retrieve it. Immediately upon the completion of its part in the mission, it was swallowed whole, killing the two men inside in the process by the Mosasaurus.