Dutch and D'avin, with the help of an obnoxious black market dealer, are on the hunt for a weapon that will draw out the Hullen; Johnny receives an SOS from Clara, leading him into the underground world of Hackmods.
After tracing a Black Root ship to a radiation scorched planet, the Killjoys find an abandoned Hullen training camp, creepy inhabitants and a connection to their past.
Pree's warlord past is the only thing that can help Dutch and Johnny after an ambush. D'avin tries to get to the bottom of a new Black Warrant that hits close to home.