just watched this documentary (11/25/22). who among us can't identify with feeling lonely? that's what made the movie so endearing and suspenseful. i was desperately rooting for the research team to find whale 52. it was an tearful ending. you'll have to watch to find out whether they were tears of joy or sadness. the documentary gives some history of whales and their interaction with mankind and their current plight. i love whales but, everyone should watch this.