we talked to the show's star, catherine mcphee, about what we can all expect tonight. >> there's kind of some friction. it's a good one but walter's little heart strings are being tugged on and we're also going to save the world at the same time. >> catch the two-hour premier of scorpion at 8:00 here on cbs4. police are using to try to put an end to street racing. >> they gather each week to watch the auto aerobatics. it often leads to racing. >> how do you stop this activity? >> well, i think you stop it with enforcement. >> reporter: they're hitting them where it hurts. >> you say police can't stop this. why? >> because it's not stoppable. >> what rick learned about the we hope you join us tonight at 10:00 only on cbs4 news. >>> time to get back to michael at the viewhouse centennial and the other men. >> we're continuing our conversation tonight with broncos linebacker brandon marshall. time for one of my favorite segments. riddle me this brought to you by the land rover discovery sport. >> here's the question. shouldn't even be a question. it's me. absolutely. >> now pass rusher,