Jason Isbell and the 400 Unit return to the Ryman this fall. The band announced a seven-night run at the Mother Church of Country Music in October. Shows are set for October 18, 19, 20, 22, 23, 25, and 26, and tickets are $49.75, $59.75, and $125. Tickets go on sale at 10 a.m. Friday, June 21st.