A common plotline is Prentiss getting physically injured during a case. For example, she might be shot while chasing a suspect. This then leads to the team rallying around her, showing their strong bond. Another plotline could be her getting hurt emotionally, like being betrayed by someone she trusted during an investigation, which causes her to question her judgment and her place on the team.
Often, in these fanfics, Prentiss is hurt in a hostage situation. The kidnapper might target her specifically or she might put herself in harm's way to save others. This creates a tense situation where the rest of the team has to figure out how to rescue her without getting her further injured. The story then focuses on their rescue efforts and Prentiss's mental and physical state during and after the ordeal. It can be really engaging as it shows different aspects of the characters and their relationships.
Some fanfics have Prentiss getting hurt as a result of a long - term undercover mission gone wrong. She could be exposed and tortured, for instance. This not only causes physical harm but also psychological trauma. The team then has to deal with the aftermath, helping her heal and also dealing with the guilt of not being able to protect her. These types of plotlines allow for a lot of character development and exploration of the themes of loyalty and friendship within the 'Criminal Minds' universe.