First a screening interview on campus/over the phone. Very easy, about fifteen minutes, basic questions gauging interest and why you're qualified for the job.
Second Round was a week later, 2 days in Nashville. The first day consisted of a Q&A session with former campus recruits, a tour of a Pepsi beveridge plant, dinner and networking event. The second day was 4 interviews, one Resume Review, one Technical interview asking questions about a production environment, one Case Study handed out the 1st day, and one Behavioral interview. Each interview had 2 interviewers, all who'd attended the networking event, giving some level familiarity.