This paper explores the dynamics of teamwork in a team-based Massive Open Online Course. The purpose of the study is to discover patterns and characteristics of the students in teams that completed the course. Many studies have revealed that a very small percentage of students complete Massive Open Online Courses. The percentage is even smaller in MOOCs that involve peer-assessment. This study aims to give conscious advice for future MOOC students on how to complete a team-based peer-assessed MOOC by studying the dynamics of successful teams. A qualitative research method was utilized in the study. Data were collected from observing the MOOC platform and conducting interviews with successful team members and team leaders. [For the full proceedings, see ED621557.]