S1, E1: On April 6 1862 A Pivotal Moment Unfolded In The Dense Forests Of Tennessee Marking One Of The Bloodiest And Most Shocking Battles In Us History The Control Of The Confederacys Western Half Hung In The Balance Despite The Element Of Surprise With A Confederate Army Launch The Tides Turned As Two Union Armies Under Ulysses S Grant Overcame The Forces General Albert Johnston Commanded