Intern activity plan?

I’m about to apply for an intern position at a commercial bank. For some personal reasons I can’t really state the name here. Just to provide some background info of the firm, the market capital is about 14billion. Applicants can’t choose the field or area they want to work for. The thing is, the firm requires applicants to submit their plans during the intern program with a one page length, besides the resume and cover letter. Has anybody have some sort of idea what I should write down? If I had known which position I’m going to apply for, I may write some sort of things related to that particular position, but in this case I’m not even sure where to start from. I’m quite desperate right know, so any advice given would be thankful.