4-21: For The Cause
Sisko's loyalties are tested when his girlfriend, Kassidy Yates, is an accused Maquis collaborator.
4-09: Our Man Bashir
A transporter mishap converts several crewmembers into spy-themed holosuite characters, with their true memories erased and their lives linked directly to the program.
A survivor found aboard an ancient Bajoran ship claims to be the true Emissary of the Prophets.