The group descended down the set of stairs. They stepped down into a metal walkway somewhere in the canyon. The entire area was engulfed in a thick fog.
Grant began to descend a stairway when it suddenly collapsed. Paul pulled him up and they watched as the stairway plummeted to the bottom below.
Paul whistled. "You okay?"
"Yeah." Grant said.
The group went back to the walkway. Grant began walking, the walkway creaking.
"Let's do this one at a time, shall we?" Grant said. Grant continued walking, alone.
The others watched as Grant disappeared into the fog.
"Okay, come on over!" Grant yelled, as he reached the other side. "One at a time!"
Amanda turned to Eric.
"All right, Eric, I'm gonna leave you just for a minute, okay?" Amanda said. "Then you're gonna be right behind me, okay?"
"Mom," Eric said, "I've been alone in a truck for eight weeks. I think I can manage the next two minutes without you."
"All right." Amanda said, "We're all together now."
Amanda began slowly walking down the catwalk.
Grant walked down the catwalks, and noticed a section that was fenced in. A section of the fence had been torn open.
"Okay, Eric!" Amanda said as she reached the other side. "Come on, honey!"
"Okay." Paul said to Eric. "Over you go."
Eric slowly crossed the catwalk.
Grant noticed a dry, white, chalky substance on the railings of the catwalk. He picked it up, and smelled it. It had a light pungent odor to it. It was guano.
Suddenly the catwalk shook and rumbled.
Grant walked to Amanda. He looked up. The fog began to dissipate higher up, revealing the spherical structure they were in.
"Mom?" Eric said.
"Oh, my God." Grant realized.
"What is it?" Amanda asked.
"It's a birdcage." Grant said.
"For what?" Amanda asked.
Eric peered into the thick fog, as an enormous Pteranodon walked over to him.
Eric screamed and rank back. "Dad!"
"Eric!" Amanda yelled.
"Eric." Paul said. "Eric!" Paul and Billy ran down the catwalk.
"Help me!" Eric yelled.
Squawking, the Pteranodon flew towards Eric, snatching him off the catwalk.
"Eric!" Paul yelled, "Eric."
The others began running down another catwalk, desperately trying to keep up with the Pteranodon.
"Eric!" Amanda yelled. "I can't see him! I can't see him!"
The Pteranodon continued flying through the canyon.
"Eric! Eric!" Amanda yelled.
The Pteranodon flew to its nest, dropping Eric next to it. Eric picked up a human skull and threw it at the Pteranodon chicks. Eric fled, leaping over the rock columns that surrounded the nest.
"This way!" Paul yelled.
Grant saw Billy stop on the catwalk and put on the parachute pack. Billy then ran towards an open section of the catwalk.
"Billy?" Grant said. "Billy? Billy, stop. Bill, stop! Don't Billy!"
It was too late. Billy leaped from a railing, he pulled the parachute, and was blown through the canyon by a gust of wind.
"Billy!" Grant yelled.
Eric fell on a rock column and became swarmed by the hungry Pteranodon chicks.
"Eric, hold on!" Billy yelled, trying to maneuver himself closer to Eric.
"Eric!" Paul yelled.
Eric got up, the Pteranodon's tearing off the InGen jacket he had been wearing.
Suddenly, the Pteranodons swarmed Eric again.
"Jump!" Billy yelled.
Eric ran down an elongated column, jumping onto Billy, holding on for dear life.
A Pteranodon chick continued clinging onto Eric before falling to the river below.
Paul, Amanda, and Grant came to a section of walkway that had broken off. There was nowhere else for them to go.
Suddenly, the adult Pteranodon flew into the fence in section of catwalk they were in. The trio tried to run back. The Pteranodon flew over the catwalks, swooping down into a broken section of fence. It began walking towards them.
Eric looked back, three more Pteranodons were following them.
"Billy!" Eric yelled. A Pteranodon swooped over the parachute, tearing a hole in it.
The first Pteranodon continued walking towards Grant and the Kirbys. Grant attempted to kick the Pteranodon in the beak.
"Let go now!" Billy yelled. Eric let go, falling into the river.
The first Pteranodon trapped the three in the dead end section of catwalk. Suddenly, the section broke off, sending the three humans plummeting into the river. The Pteranodon fell as well. As it attempted to fly out of the water, the section of catwalk fell onto the Pteranodon, pinning it underwater.
The parachute blew towards the canyon wall, trapping Billy against it. Billy tried to tug the parachute off the wall to no avail.
"Eric?" Amanda said, as the three reached the shore.
"Here's there." Paul said.
Eric looked to see three Pteranodons flying by Billy, trying to grab him.
"Eric?" Amanda said again. "Eric!"
"There he is!" Eric said, pointing at Billy. "He's across the river."
"Get him outta here!" Paul yelled to Amanda.
"Go, go." Amanda said. "Go, Eric."
"No, no." Eric protested, "What about Billy?"
Billy pulled off the pack, sending him falling into the river.
Billy waded towards Grant and Paul who ran to get to him.
A Pteranodon plucked Billy from the river, but dropped him.
"Hang on, Billy!" Grant yelled.
Billy fell as the Pteranodon attacked him.
Eric and Amanda, meanwhile, found an exit from the aviary.
"Billy! Billy!" Grant yelled.
"Wait." Paul said.
"Get away!" Billy yelled to Grant and Paul as two Pteranodons began attacking him. "Get away!"
Billy was swept down the river as the two Pteranodons continued attacking him. The river tinted red from blood. A third Pteranodon turned and looked at Paul and Grant.
Grant and Paul fled towards the gated door as the Pteranodon swooped towards them. The two men dove into the river to avoid the beast.
Amanda and Eric ran out of the aviary, Amanda shutting the door.
Grant and Paul swam under the aviary as the fence did not go to the bottom of the river. They turned and watched as the Pteranodon flew to the Aviary wall, trying to get to its prey.
Grant and Paul ran towards the motor yacht.
"Paul!" Amanda beckoned.
The shaking of the aviary caused by the Pterandon managed to release the aviary door's lock.
The four survivors worked to get the motor yacht going downstream. They watched as they floated away from the aviary, the Pteranodons squawking in the distance.