A behind-the-scenes look at Nike’s audacious attempt to break one of the most formidable barriers in running—the sub-two-hour marathon. We hear from the elite runners involved, members of the Nike team working on the Breaking2 project, and we provide our own perspective on the attempt. (2:34)Inside Broadway’s first a cappella musical—In Transit. We talk to one of the show’s creators, Sara Wordsworth, about how her own running experience helped her create the running storyline that’s in the show. (28:06)In the Kick, a pair of classic—and hard to find—running shoes goes for big bucks when up for auction, a runner finds a great way to fit some golf into his run schedule, and more tips for going long on the treadmill. (59:18)This week's episode is brought to you by Jabra. Listeners can go to jabra.com/runnersworld to sign up for exclusive discounts and special offers on Jabra products like the Jabra Elite Sport wireless earbuds.  Further reading:Nike’s Audacious Plan: Break the 2-Hour Marathon Barrier in 2017What Will It Take to Run a 2-Hour Marathon?Check out our show page here. Follow us on Twitter (@rwaudio) and Facebook (Runner's World Audio).