Set one year after the events of Jurassic World: Fallen Kingdom, a blended family from Oakland, California goes on a camping trip at the fictional Big Rock National Park in Northern California, approximately 20 mi (32 km) from where dinosaurs from Fallen Kingdom were let loose.

During the closing credits, found footage clips of dinosaurs and other creatures are shown including a pack of Compsognathus chasing after a scared little girl, a Stegosaurus causing a car to swerve and drive off a cliff, fishermen in a boat peacefully passing by a Parasaurolophus on the banks of a river, a Mosasaurus eating a great white shark after the shark eats a seal, and a Pteranodon swooping at a dove that had just been released at a wedding.

[1] Trevorrow wrote the short film with Emily Carmichael, who was already working with him to write Jurassic World Dominion (2022).

The short film's story remained the same throughout the project's history, as Trevorrow believed the next logical step for the franchise would be for campers to encounter dinosaurs following the events of Jurassic World: Fallen Kingdom.

A casting director who knew Trevorrow helped lead a secretive search for the child actors.

[4][3] Ireland was chosen as redwood trees outside Dublin resembled national parks in northern California.

[3] After its television premiere, Battle at Big Rock was released online through YouTube, as well as JurassicWorld.com and the website for NBC.

[11] The short film was initially scheduled to accompany the theatrical release of Universal's Hobbs & Shaw in August 2019.

[12] The short film was included on the Blu-ray and DVD releases of Jurassic World Dominion (which was exclusively in North America, Japan, China, English, French, Dutch, German and Italian speaking countries).

[15] Josh Millican of Dread Central described it as "...a tasty little treat..."[16] Mike Reyes of CinemaBlend described it as "a sight to see".