When the Alien Liberation League (A.L.L.) break into the Interplanetary Zoological Park (I.Z.P.) and release the exhibits, all hell breaks loose on Chicago. Chris Gault is desperate. He knows the only way to contain the breakout is to muster every trapper he can to help re-acquire the alien specimens that are running rampant all over the city—even those that have retired—and Chris knows that his old friend and mentor Wyatt Dorren is just the man to get the job done. Once again Wyatt must face the creatures that he tracked and trapped before. Only this time it's not jungle he'€™s facing. It'€™s suburban jungle & €”sewers, subways, cellars, rooftops. Every nook and cranny provides a hiding place for the alien escapees and new challenges for the teams that have to face them. Not only that, but there'€™s an hysterical civilian population that needs protecting too.