The First Purge (2018)
Probably the worst of the 4 films but an interesting delve into the backstory of The Purge. It is much more of an Action film than a Horror but it has plenty of creepy visuals and enough over the top violence. The contact lenses that they gave the participants are particularly spooky looking once it gets dark!
The political message is absolutely hammered home without any finesse, you couldn't watch this and not know what they were trying to say and it does hurt the film. However the likable cast of characters makes up for the shortcomings.
I liked it, but it is completely average.