1985 will be a year that Bears fans will always remember.
But what happened before that historic Super Bowl season was the evolution of the "46" defense that led to a title under legendary Bears defensive coordinator Buddy Ryan.
CSN caught up with former players and coaches in the latest installment of Bears Classics: 'The 46.'
Find out why the defense worked so well from members of that feared defense in the video above and check out the complete episode in the clips below.
Ex-Bears on the demanding Ryan:
How the defense got its name:
