There have been some rampant purse-grabbers in Riverdale, and Betty's taken precautions to protect herself. She's started by taking mixed martial arts classes, but she's a bit too jumpy and sometimes her knee-jerk reactions end up with someone getting hurt -- which means no surprise smooches from Archie! Archie must help her learn how to not have any shotgun reactions. Can he help her hone in on her butt-kicking craft, or will he end up in the hospital? Find out in "Don't Cross Betty Cooper!" The hilarious all-new lead story to this JUMBO comics digest!