Here. What, take that piece of junk? It's the love of your life. I never told you the...

Jesse Kane: [holds up a dagger to his son] Here. David Kane: What, take that piece of junk? It's the love of your life. Jesse Kane: I never told you the story behind it. This was your grandfather's. He was one of the Navy's first frogmen during World War II. He was so stealthy in the water, his unit nicknamed him Manta. But after the war, his country forgot about him, so he went back to the sea, scavenging and surviving with his wit and this knife. He gave it to me when I was your age. And now it's yours, son.

Here. You take this piece of junk, this is part of your life. I never told you the story behind it. This was your grandfather's. He was one of the navy first fought in World War 2. He was so stealthy in the water. His unit nicknamed him Manta. But after the war, his country forgot about him So he went back to the seas, scavenging and surviving with his wit. And this knife, he gave it to me when I was your age. And now, it's yours, son. We just hit something. No. Something hit us./ Sir, there's something out there. Another submarine? /No. I think it's a man.