All three major indices continued to tumble, with the Dow falling more than 600 points and S&P dropping below 4,000 to the lowest level in a year, and Jim Cramer is guiding investors through the market’s move lower. Next, American Electric Power CEO Nick Akins talks about the future of the grid and the outlook for the energy sector. Then, could Papa John's help investors make some dough? Papa John’s CEO Rob Lynch joins Cramer after earnings to break down the numbers. Plus, XPO Logistics CEO Brad Jacobs.