Spear and Fang are back. Genndy Tartakovsky’s Primal, one of last year’s very best television series, will be back on October 4. That’s when another five episodes of the blood-soaked series, charting the friendship between a caveman and a dinosaur and their series of pulpy misadventures, begins as part of Cartoon Network’s Adult Swim programming block. And – even better news! – Primal has officially been renewed for a 10-episode second season in 2021. (Tartakovsky alluded to this in our recent Collider Connected chat.) If you never watched the first five episodes, you should get on …