control room lights dim almost to blackness.
EXT. U.S.S. MONTANA 5
We see only the effect, not the source, as a large diffuse light passes
rapidly under the subs hull. Moments later a shockwave, like an underwater
sonic boom, impacts the sub, slamming it sideways.
INT. U.S.S. MONTANA 6
The bride crew are knocked off their feet, as the ship is buffeted.
EXEC
Turbulence! Were in its wake!
SIRENS. E