The dramatic incident was caught on surveillance tape.
Tammarie Jones, a 41-year-old grandmother, was behind the front desk of a motel in Kent, Wash. Tuesday night when a man wielding a huge knife and wearing a knit cap to cover his face leapt over the counter and demanded money.
Jones and security expert Bill Stanton spoke about it on The Early Show Monday with co-anchor Harry Smith.
Jones said she remembered thinking, "He's not gettin' nothing" as she struggled valiantly.
Jones suffered a wound to her back and two to her legs.
To see the incident and Jones and Stanton discussing it, click on the arrow in the video below: