Transcript for Houston and Red Cross undertake massive effort to rescue those in need
safe. Reporter: And the city undertaking a massive effort to shelter all those in need. Also working around the clock, first responders rescuing thousands of people with little sleep and under the most difficult of circumstances. And sometimes, they have to come to the rescue of their own families. Here's ABC's Eva pilgrim. Reporter: We took off before dawn with this team of volunteers on a rescue mission. Pearland Texas just south of Houston. Overnight rain pouring into homes that until now had been dry. Leaving people trapped. There's an eerie quiet, but then -- Where are they at? Reporter: Right away, we hear calls for help from a stranded family. Are you okay? When did the water start creeping up over here? Sunday. We woke up Sunday morning, and it never went down. Reporter: We meet Michael Gibson, a firefighter who's been rescuing people for four days. But this morning he's not a first responder, but a son. My parents called they said they were under water. We're weaving though a graveyard of cars, finally reach their home, getting them to safety. Reporter: We weave through a graveyard of cars, finally reaching their home. My hands are a little cold, but we're going to sit up here, okay? Getting them to safety. Then Michael joining with this team of fishing buddies going back to his old neighborhood. How many are in there? Two there, and one there. Reporter: Coast guard choppers hovering above. Ready to help. For hours they scour this area. Saving family after family. These volunteers repeatedly returning to do it all again. Right now, everybody needs help, so we have to come help them. We're a little different down here in the republic of Texas. We look after each other, and take care of our own. Texas strong right there, and Eva joins us right now from Pearland. Are there still people that need a rescue tonight? Reporter: Tom, the coast guard estimates about 300 people were rescued from that neighborhood. But we spoke to several people who made the decision to stay if the water keeps rising. Those rescuers may have to go back in that neighborhood to get them, Tom. That decision to stay or go so complicated. All right, Eva. Thank you so much.
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