The trial for the men accused of orchestrating the September 11 terrorist attacks still hasn’t started yet. Family members of those who died that day are still hoping for some kind of accountability, more than 22 years later. This week, the story of how one victim’s sister is navigating this historic and twisted trial.

• Prologue: Host Ira Glass introduces the new series that Serial is doing about Guantánamo Bay. This is the second of two episodes of theirs that we’re airing. (2 minutes)
• Act One: We meet Colleen Kelly, a member of September 11th Families for Peaceful Tomorrows, and learn just how upside down and messed up the trial for the 9/11 accused has been over the past decade. (28 minutes)
• Act Two: Sarah Koenig explains what’s probably the best possible outcome that everyone can hope for at this point. And why, when it hits the news someday — if it ever happens — it’s sure to be deeply misunderstood by lots of people. Plus a trip to Guantánamo with Colleen. (31 minutes)

Transcripts are available at thisamericanlife.org