The ending then shows a submarine coming across the wreckage of the plane, which is suddenly surrounded by bathyspheres containing Splicers who immediately attack the crew and take control of it.
The ending then shows a submarine. This submarine is coming across the wreckage of the plane. The plane is suddenly surrounded by bathyspheres. These bathyspheres are containing Splicers. This Splicers immediately attack the crew. This Splicers immediately take control of it.