No. 4 Penn State stayed undefeated tonight beating Iowa 21-19 with a last second, walk off touchdown as time expired

Wow!

Down to its final play, No. 4 Penn State hauls in a last-second touchdown to avoid an upset at Iowa. pic.twitter.com/TC0WINRXnS

— ESPN (@espn) September 24, 2017

Thanks for nothing Hawkeyes…