Dream of swim, dolphins, woke up

A group of twenty strangers and myself were on some kind of group tour. On the tour, we had to swim under murky, brown water with dolphins as our tour guide. The dolphins couldn't speak, but there was a mutual understanding between the group of people and dolphins. Somehow everyone knew which way the dolphins wanted us to go, although we didn't know where we were going. They continued to spin and twirl throughout the water until we arrived at an underwater convenient store. The dolphins left once everyone went inside. Inside the store, it was very dark, there were broken tiles, and the shelves were unorganized. As everyone was browsing through the store, a group of conspirators, from the tour group, raided the store and stared to fire their weapons. D.J, a security guard from my middle school, was the leader of the operation. They didn't try to rob the store or hold any hostages. They were just shooting at everyone. D.J recognized me and told me to stay close and hide behind him. He said he was helping me because he didn't feel I was part of the "threat." As I went to run and hide, a man with a net started chasing me. He backed me into a corner and I couldn't scream. As he went to lift his net, I woke up.