Persons Unknown Episode Titles!

Season 1, Episode 4: "Exit One"
Season 1, Episode 6: "The Truth"
Season 1, Episode 7: "Smoke and Steel"
Season 1, Episode 8: "Saved"
Season 1, Episode 10: "Identity"
Season 1, Episode 12: "And Then There Was One"
Season 1, Episode 13: "Shadows in the Cave" (season finale)

Source: Spoilertv