What is a Series?

Challenges are housed in a Series. It is possible to have a single Challenge in a Series but most of the time, a Series is comprised of multiple Challenges.  

When you join a Series, you are, in effect, joining as many Challenges as that Series contains (e.g. 5 Challenges Mon - Fri in a week-long Series). When subsequent Challenges are launched within that same Series, you're automatically joined to them as well so there's no need to re-enroll. 

You can get specific information about the rules, prizes, number of Challenges, and any additional disclosures on the Series Details screen.