Season 1 of 999: Rescue Squad premiered on February 13, 2018.

Season 2 of 999: Rescue Squad premiered on January 8, 2019.

Season 3 of 999: Rescue Squad premiered on October 29, 2019.

Season 4 of 999: Rescue Squad premiered on October 13, 2020.

Season 5 of 999: Rescue Squad premiered on February 1, 2022.