The beginning of supernatural

Set in the city of Galveston, right off the coast of Texas. Th story opens with a view of the Galveston zoological park, it had lots of animals, And employees, a strange masked man makes a count with his fingers and at the same time A little girl runs towards what looks like a food source there in the zoo with a syringe in hand. He makes the count 4-3-2-1 and immediately at the end of his count, all the animals go rogue In an uproar, breaking out of chains and cages, devouring many people before running off in  Multiple directions. It's night time and A family of three drives up the highway with their 10 year old son whom they called xander in an Uber, He smiles happily at the thought of starting a new life in Galveston but his happiness doesn't last  For long though as a boar suddenly came out of the woods bumping right into their Uber, Mom and Xander scream in horror as the boar devoured the Uber driver Take Xander out now!! Dad yelled Mom quickly scoops a scared Xander in her arms and takes off running into the woods with dad trailing Behind but he stops in his track as if he sensed something  Go with Xander in the other direction while I distract the boar, dad tells mom and she cries out No, let's go together, am not leaving anyone behind, mom says trying to convince dad but he is adamant You are a vetenarian and you of all people should know that we can't escape this so please  Do as I say and save our son, dad pleaded No, please come with me, please, mom cries Dad holds her shoulder and shakes her a little as if trying to wake her up Please do this for Xander, I promise I'll be back for you both He wipes a tear from her face while smiling sadly but the boar out of no where suddenly jumps on him, mom screams with horror while Xander falls unconscious