Harbor Night Swim — Underwater Infiltration

A 10-second submerged spy short, 16:9: midnight in a naval harbor, a frogman spy infiltrating under patrol-boat searchlights. The hook: cutting through a steel anti-submarine net while a searchlight stabs the water above.
0-3s: Midnight harbor: black water, patrol boats sweeping searchlights across the surface, warship hulls looming like cliffs. Beneath the surface, a frogman spy in a black rebreather rig glides — no bubbles, only a faint shimmer — toward a steel anti-submarine net strung between the hulls. His dive knife begins sawing the mesh.
3-6s: A fluid underwater tracking shot stays with the swimmer: the knife working the steel, cut strands curling, his body flat against the net. Above, a searchlight beam stabs the water — hard white shafting down through the green-black murk — and he freezes against a hull, motionless, heartbeats visible in his thin bubble stream.
6-10s: The beam sweeps past. He finishes the cut, slips through the net's mouth, and glides on into the harbor's dark heart — bioluminescent plankton igniting in his wake, a trail of cold fire. The searchlights keep sweeping behind him. Silent, suffocating, hunted. End.
Craft: the frogman is the subject — black rebreather rig, dive knife, total discipline; the harbor as the arena — black water, looming hulls, steel net, patrol boats; the searchlight as the predator. Camera: a fluid underwater tracking shot with the swimmer, a top-down of the searchlight stabbing the black water. Lighting: green-black underwater murk, hard white searchlight shafts, bioluminescent plankton as accents. Atmosphere: silent, suffocating, hunted. Style: submerged thriller realism, 35mm, underwater volumetrics, green-black grade, 24fps, 10 seconds, 16:9.