Lost River’s very existence is threatened in this gripping episode of Fireflies. Fearfully, Backa watches the fire trucks roll in to Lost River. Backa believes that it is less than 24 hours before the fires reach the village, and he expects they’ll come from the west as well as the predicted front to the east.

Not only is the Lost River brigade fractured, but its members also insist on sniping in front of Divisional Commander Donna Bruce. Backa needs Donna to trust his judgement-they have to get out to the fires instead of waiting for more intelligence from Firecom.

Svettie makes an unexpected visit to the station and learns that the fire may reach Deep Creek by nightfall. She alerts Sharpie, who enlists the help of his son Hank, to help harvest their Deep Creek plantation before the fire arrives.

Meanwhile, Lill asks Perry for a truce until the fire has passed, but Perry refuses, accusing her of demanding his support while she destroys their marriage. He insists she has to learn to act on her own.

Backa convinces Donna that the only way he can unite his brigade is to get them out to the fire ground. However, when they confront the raging fire, the flames have spread too far and Backa is forced to fall back to Deep Creek to backburn.

Svettie, cut off from all communication, is in the middle of the area he intends to burn. Kieran, knowing where his father, brother and Svettie are, convinces Lill that they must warn them before they get trapped. When Lill becomes a hero on the fire ground, she realises maybe she’ll be able to survive on her own after all.