'Believers,' Part 2 of 5. Dana Scully has survived abduction, cancer, motherhood by mysterious means, and surrendering her 'miracle' baby. But she's never encountered anything like these 'Acolytes' before, or the mysterious 'Deacon' who's saved her from them. Plus, Mulder follows a lead to Arlington National Cemetery and the final resting place of the 'Lone Gunmen.'