it's a t rex race that took place at the nevada county fair in the sierra foothills yesterday and that is the best video grass valley fire fighters and police officers stepped in to the inflatable dinosaur costumes to battle it out. >>on the racetrack the grass valley, fire fighters came out on top with a narrow win. your children may not like it, but it's time to go back to welcoming students with a room full of it. >>inspiration and sportswriters antonio brown will be without his favorite helmets, if he wants to play this season. mark as a bee's reaction to it all coming up. >>there is studdnts heading back to school this week and kron four's helping you get ready for the new school year yeah girl force re-assess it was a perilous elementary school in pleasanton as teachers welcome the students back to class today. >>i'm here in pleasanton and i have the lucky assignment of on being asked and lunde elementary school for the first day back to school and right now we're in 5th grade back in 5th grade. goodness gracious and this is teacher kelly like so what we have in store for this th