A storm is coming, and Gotham has gone crazy, which is pretty clear to Barbara, as your average law-abiding citizen is sticking a gun in her face for the bread and gasoline she had just purchased, while the rest of the gas station falls into chaos. Babs manages to get back to her house, but is nonetheless startled at how people have started to act. Not long after she gets home, her father is called off to duty, and tells her to keep the house, and her brother safe. But, because that'd be a boring comic, soon after Gordon leaves, another policeman shows up to to the door and informs Babs that the house is in an extended flood zone, and they need to evacuate with the rest of the neighborhood.
Inside a makeshift shelter, Babs and her brother set up next to a man named Henry, who is kind enough to offer the space next to him. Through the nigh, Babs and Henry speak a little, but James Jr. starts to notice water coming into the building. Babs thinks it's just the leaky windows, but James points out water coming up from the foundation, and, WHOOPS, sinkhole opens up.
In the flood, Babs manages to get her and James to a pipe to climb up onto, but also helps some people grab on, and deliver them to safety. This of course put her in all sorts of danger, and she even slips off the pipe, but is caught by Henry, and they all make it to the roof. Being out in the open, Babs gets a good look at the overall chaos, and the island in the harbor which Henry resided on is completely in flames. Yep, things are bad.
Knowing the roof won't hold all the people and large amounts of water, the group tries to cross over onto another building, as Henry lays down a latter and makes it across, though the ladder broke in the process. Henry tells the group they'll have to jump across, but to throw them their bags first, as they'll be lighter. They agree, but then Henry, makes a turn, and can tell there are valuables in the bags, so he decides to take them in an effort to help support a new life he'll have to make, then attempts to abandon the group.
This doesn't sit well with Babs who leaps across the gap, and begins to fight with Henry. At this point, Babs is barely trained, so the fight doesn't go too well, but at the sacrifice of some of her personal belongings from home, she manages to beat Henry, who falls into the water below, but manages to survive.
Shortly after that, some meager aid arrives to the roof, but the full storm has yet to even hit. Despite knowing things are about to get worth, Babs thinks to herself that she's determined to survive.