A Plastic Ocean (2016) on Netflix

Plot summary

Journalist Craig Leeson is hunting the elusive blue whale. In water that ought to be pristine, he comes across plastic waste. Free diver Tanya Streeter joins him, along with an international team of researchers and scientists. Over four years the group visits twenty locations around the globe to look into the fragile state of the oceans. Their documentary sets out the alarming facts about plastic pollution that the team uncovers, and it presents working solutions that can be applied at once.