Sterling K. Brown discusses his "This Is Us" cast returning back to the studio this week after several months apart. "I am so excited. Listen, when you have to go six months without doing that thing you love and then there is an opportunity to do it and safely, all the precautions that have been put in place - It's one of the safest places that you can be." He also spills on his character, Randall's beef with brother Kevin [Justin Hartley] and what will happen this season. "It was kind of tense amongst the Pearson brothers," says Brown. "You know in the future that these two brothers come together while they're around their mom and she's sick. So hopefully we get a chance to see how they build their way back to each other, but it's not going to be easy."