First discussion was with the recruiter, who provided some background on the individuals in the group, the purpose for hiring for the position (i.e. more info than "we're busy / last person moved on), the culture of the company and the group. They also asked about my current role and salary. Comp in my industry is fairly well known so I wasn't too fussed about disclosing this early.
There were some emails from a recruiting coordinator to deal with interview logistics.
The first round consisted of 4 one-on-one interviews. Pretty standard questions. They were trying to determine if my skill set, experiences, etc were genuine or if I fluffed my CV. They were also getting a sense as to my personality to see if I'd be a good fit for the team and the company.
The first day ended with a short discussion with the recruiter. The recruiting coordinator contacted me later that day to set up the 2nd round of interviews.
The second consisted of 4 one-on-one interviews, one of which was someone from round 1. Again, pretty standard, though the questions were a bit more detailed.
The second day ended with me just leaving campus. The recruiter later phoned to tell me I would receive an offer that week pending reference checks.