What looks like the simple accidental death of a young actress turns out to be much more complicated.
Tropes for this episode:
- The Bus Came Back: Sara returns.
- How We Got Here: The episode starts with a shootout occurring in the lab in slow motion, then flashes back to 48 hours earlier to show what happened.
- Put on a Bus: It's revealed that Riley left between seasons, stating in her exit interview that Catherine Willows was a terrible leader.