This will totally out my as a complete newbie, but listen up. The only other time I've flown internationally was to Costa Rica in 2005. Then I was traveling with my school so I had almost everything taken care of by the chaperons. Now I'm going solo to Spain. My route takes me from DLH to MSP to EWR to BCN. I'm worried about the EWR part; I have about an hour between expected EWR arrival and my BCN departure.

Do I go through customs or immigration at this time?

Will I run in to either on my way to the gate, or will I have to find them?

What's the process like?

Thank you.