Perhaps Erin gets hurt in a shoot - out that erupts unexpectedly. She could be caught in the crossfire while trying to protect a civilian. Her injury might be serious, forcing her to take time off work and deal with the physical and emotional trauma. Her friends on the force would be there for her every step of the way, helping her through the difficult recovery process.
One possible scenario could be that Erin gets hurt during a high - risk undercover operation. Maybe she was trying to infiltrate a dangerous gang and her cover was blown, resulting in her getting physically assaulted. Her partners would then be in a rush to rescue her and get her the medical attention she needs.
In a fanfiction, Erin could be hurt while trying to protect a witness. She might be ambushed by the bad guys who are after the witness she's guarding. This could lead to a tense situation where she's physically injured, and the rest of the team has to figure out how to both take care of her and keep the witness safe.
In the fanfiction, Erin getting shot might have been an ambush by a long - time enemy she made during her investigations. As she lies in the hospital, she could have flashbacks of her past cases and the events that led to this moment. Her recovery could be a long and arduous process, with her struggling both physically and mentally, but with the support of her friends from the PD, she slowly regains her strength.
One possible fanfiction could be where Lindsay is injured during a dangerous undercover operation. Maybe she gets stabbed while trying to infiltrate a criminal gang. Her partner then has to fight to get her to safety in time and she has to battle her injuries while also dealing with the emotional trauma of the situation.
Another idea is that Erin is hurt during a hostage situation. She might be trying to negotiate with the hostage - taker when things go wrong. The hostage - taker could attack her, leaving her with some serious wounds. Her colleagues would then have to take over the negotiation and also ensure Erin gets medical help as soon as possible.
One idea is that Lindsay gets hurt by a booby - trap. She's exploring a crime scene and accidentally triggers a hidden trap. It injures her leg badly. She then has to rely on her colleagues to carry on the investigation while she recovers. This could also lead to some interesting character development as she has to deal with being incapacitated for a while.
She could be hurt in a car accident while in pursuit of a criminal. The car could crash, leaving her with various injuries.
Perhaps Hailey gets hurt while trying to save a civilian. For example, if there's a building on fire and she rushes in to rescue someone, part of the structure could collapse on her. Or, she could be in a hostage situation where the hostage - taker decides to harm her when the negotiations go wrong.
Romance is also a very popular theme. Writers often develop the relationship between Erin and Jay, from the initial attraction to the deeper emotional connection. They might write about their first date, or how they deal with conflicts in their relationship while being in a dangerous line of work. It adds a lot of drama and emotional depth to the fanfictions.
A common plot point is the emotional reaction of her colleagues. Voight, for example, would be extremely protective and angry that one of his team members was hurt. He might go on a personal vendetta against those responsible. Another point could be Erin's own struggle while recovering. She might be impatient to get back to work and frustrated with her physical limitations.