[5] Class Action Park begins by chronicling the life of penny stockbroker Eugene Mulvihill, who is described as having become rich from pump-and-dump schemes.

The life of Eugene Mulvihill is also chronicled, including a discussion of his legal issues, which often involved Action Park.

The film ends with the interviewees reflecting on Action Park as a whole, with one stating that its vision continues to live on in schemes such as Fyre Festival and Theranos.

Class Action Park was the number one film on HBO Max for the week following its premiere date of August 27, 2020.

[13][14][3] As of October 2021[update], 96% of the 52 reviews compiled on Rotten Tomatoes are positive, with an average rating of 7.5/10.