Zoo season 1 finale airs on CBS CBS

All hell will break loose in the season finale episode of Zoo, where Jackson Oz will make one last attempt to cure the worldwide animal pandemic. But he will hit a major glitch on the way.

The thirteenth episode of season 1 is titled, That Great Bill Hill Of Hope, which will air on Tuesday 15 September at 9pm EST on CBS Network. The official synopsis released by the network reads as follows:

Jackson and the team make a final attempt to find a cure to the worldwide animal pandemic, but hit an obstacle that may be impenetrable, on the season finale of Zoo.

Click here to watch the premiere episode livevia CBS All Access. You can also watch it online by clicking here.

A new trailer for episode 13 shows animals going wild and turning on humans too. With the cure lost in the plane crash in episode 12, Jackson and his team try to find a way to stop the animals.

The promo opens with Jackson, who looks injured and bleeding, saying, "47 people lost their lives in the crash, along with the cure." The video voice-over declares, "Animals have unleashed their wrath on the world; now the final battle begins."

"The animals have stopped feeding on each other, they just seem to be feeding on us," claims another member of the team who is entrusted with the job of stopping the apocalypse. Based on the bestselling novel by James Patterson, Zoo is a global thriller about a wave of violent animal attacks against humans sweeping the planet.