Sea Fever

Siobhan, a scientist studying faunal behavioral patterns, purchases a place on the fishing trawler the Niamh Cinn Óir, manned by a crew of six: skipper Gerard, his wife Freya, ship's engineer Omid, Johnny, Ciara, and Sudi. As they set off, the Coast Guard alerts them that their planned destination, which is rich with fish, is in an exclusion zone. Unbeknownst to the others, Gerard takes them into the zone anyway; he needs a large haul of fish on this outing to keep the ship. As they travel through the zone, the ship runs into an unknown, shoal-like object which stops the boat. Omid discovers strange breaches in the hull which exude a blue-green slime. The crew suspects barnacles, and as Siobhan possesses the only diving gear onboard, Gerard sends her armed with a knife to cut the boat free. Underwater, she discovers the tentacles of an enormous bio-luminescent organism far below adhering to the boat. Thinking it may be a newly-discovered form of giant squid, the crew attempt to capture it with their net, but the creature proves too heavy. While releasing the net, Johnny cuts his hand on the rope, which is covered in the same slime.