I'll admit it. I had a hard time watching the first minute of this video. It sure doesn't look good for the elephant. Don't worry, stick with it.
She probably didn't realize it as she was rushing toward the water, but that's what would save her. Lions can roll around in the dirt and crawl all over each other for a bite to eat, but they don't like getting wet.
Actually, one of them followed the elephant into the river, but here's what she looked like afterward.