If is about a girl who discovers that she can see everyone's imaginary friends - and what she does with that superpower - as she embarks on a magical adventure to reconnect forgotten Ifs with their kids.

Following the events at home, the Abbott family now face the terrors of the outside world. Forced to venture into the unknown, they realize that the creatures that hunt by sound are not the only threats that lurk beyond the sand path.

The film will be a prequel that will focus on the events that lead up to the very first Purge event.

A family lives an isolated existence in utter silence, for fear of an unknown threat that follows and attacks at any sound.