Based on

Movies like Undercurrent (2020)

A marine biologist is leading a project for the mapping of one of the deepest areas of the North Atlantic Ocean. Her project depends on the controversial use of a developing biotechnology that works directly with a species of krill that inhabits at low depths. Throughout months of observation and communication, the marine biologist develops a relationship of friendship and kin with the krill swarm, while observing their movements through the nano-cameras incorporated in their bodies -- slowly moving through the deeper zones of the Ocean.