Warning: spoilers ahead for the April 25 episode of FBI Season 5, called "Sisterhood."
The newest episode of FBI was guaranteed to be a dramatic one for Maggie as soon as it was confirmed that her sister Erin would be in the mix. She has always had a bit of a blind spot when it comes to her sister, and while those tend to be standout episodes for Maggie, they don't always paint her in the best light. Erin going undercover for a case involving drugs gave Maggie some big reasons to worry, and the tension between the sisters boiled over when Maggie made a harsh declaration at the end of the hour that I never would have predicted.
