Together, the three survivors glided through the water. So far, the Tylosaurus was out of sight. But they knew it was still in the area...somewhere.
The group made their way to the pipeline, passing underneath it.
As Nima tried to swim through an opening in a rock wall, her oxygen canister was snagged.
She struggled to free herself, but Gerry quickly swam up and helped her through.
The clanking of the cylinder however, attracted the attention of the Tylosaurus.
Suddenly the Tylosaurus bit down on the rock wall, knocking Gerry out of the way.
Nima quickly swam for a diving bell, as the Tylosaurus swam after her.
She scrambled inside for safety.
The Tylosaurus circled and charged the diving bell, biting down on it.
The force of the attack snapped the rope suspending the diving bell and it began sinking.
The Tylosaurus swam away, disliking what it was biting on.