Out of the Jackrabbit bubble and across the border we go for Friday's "Behind Enemy Lines" show to grasp more insight into the No. 1 Bison — the X's and O's and the Jimmy's and Joe's. Who are these guys? Why have they demonstrated machine-like dominance on both sides of the ball with an average score of 43-10 on their way to 7-0? (Hint: It is more than a perceivably soft schedule). While Chase Mason's injury hovers over the game — and yes, Izzo and McFeely have thoughts on if he'll play and how the injury affects the outcome — there has been a lower-key injury on NDSU's defensive line that may have high impact on the Bison's chances of rattling Mason or SDSU backup Luke Marble. Few know the Bison better than their TV play-by-play announcer Dom Izzo, who calls every NDSU game except this one (ESPNU's broadcast means no local call for either squad) and also hosts a 9-11 a.m. daily local sports show you can watch live here on Sioux Falls Live and KSFL-TV. Izzo provides the nuts-and-bolts primer for the matchups.