Lucas gets into Mrs X's limo and she complains that he is an idiot for leaving the woman's body behind. She points out that if an autopsy is carried out there will be some "uncomfortable questions". She tells Lucas to fetch the body. Meanwhile, the coroner calls George excitedly and says he needs to come and see the body. George goes to the morgue with Jim but they are shocked to discover that the coroner has been killed and has claw marks across his face. Meanwhile, the woman's body has disappeared. Back at the lair, Jim suggests that there must have been something to do with the body that someone didn't want people to find out. Stephanie has the coroner's report and reveals that the dead woman has the same chemicals in her blood as they do - in other words, she was a super too. They suddenly hear reports of another animal attack.
At school, Daphne tells Chris that Sara Bareilles is shooting her video in their town later. Chris suggests that they ditch school to go and watch, but Daphne is worried about getting in trouble and adds that she has to finish a history paper. Chris asks if she would go if her paper was done, and she reluctantly admits that she would. Meanwhile, JJ is practising for the academic decathlon but is confused when Lichfield gives him different problems from the rest of the team, adding that he needs context for the equation. Later, Chris finds JJ and asks him to complete Daphne's paper for her so she will agree to skip school. He reveals that he knows JJ is a super genius. JJ confronts Daphne and complains that she has put her boyfriend before her family, but Daphne says it is nice to know that Chris still likes her despite her powers. JJ agrees to write the paper if she reads Lichfield's mind and finds out why he is desperate for him to complete the equations. Later, Daphne and Chris leave school but are stopped by a teacher. Chris persuades Daphne to get them out of going to the teacher's office, to get the teacher to write them a note excusing them from class, and to make the teacher give them some money.
Jim and Stephanie arrive at the new animal attack scene and Jim spots an officer putting a syringe into a bag. He goes outside and informs Stephanie that the victim appears to have been a drug addict, and Stephanie asks which drug they were taking. She uses her speed to rush in and steal the syringe, and confirms that the victim was taking the serum. Back at the lair, Jim asks why a super is targeting other supers. George points out that the killer might actually be doing them a favour, but Stephanie says the supers were made into monsters against their will and don't deserve to die like this. George says they need to figure out where the killer will go next. Meanwhile, Lucas arrives outside Katie's house and asks about Joshua. She insists that she hasn't spoken to him since they broke up and Lucas begins to leave, but sniffs the air and murmurs: "It's you." He shows his fangs and claws, and claims that Katie is "one of them". Katie screams, but at that moment Lucas is thrown onto a nearby car. Jim and Stephanie come over and Katie explains that a man with claws tried to attack her. She wonders whether Joshua is there as someone threw Lucas onto the car, but as she gestures a vase flies across the room. The trio realise Katie somehow has powers. Jim points out that the man must be hunting people with powers and realises that they need to get the kids out of school. Stephanie speeds off to collect them, while Jim and Katie go to the lair for safety. As they leave, Lucas calls Mrs X and reveals that the list of supers she gave him is not complete. He asks what she wants him to do, and she tells him to kill them all.
The next day, Daphne goes to see Lichfield and hands him JJ's answer to the equation. She hangs around and reads his mind, discovering that someone would have killed Lichfield if JJ hadn't solved the problem. She goes to phone JJ, leaving a message on his phone saying that something weird happened with Lichfield. Chris finds her and asks after Stephanie, who is now recovering at home. Daphne admits that she wants to take a break from manipulating people's minds but Chris points out that they could do lots of cool stuff and reveals he has been working on a wishlist.
Over at Global Tech, King is reading the solved equation from JJ when the CEO arrives - Mrs X. Mrs X complains that supers are running free around the city and announces that from now on she will be directly overseeing his every move. However, King reveals that he is much closer to solving the equation for permanent powers, without the need for frequent injections of serum. Mrs X is impressed. Meanwhile, Daphne arrives to pick up some things from Stephanie's lab and discovers Katie looking shocked. Katie reveals that she has figured out why she has powers - she is pregnant with Joshua's baby.
The episode ends with Stephanie deciding to go for a run. Jim is concerned, but Stephane insists that she is feeling great and will be back in a minute. Jim agrees and Stephanie shoots out. However, as she runs she notices her hand begin to disintegrate. She seems to disappear into a burst of light.
What did you think of the episode? Leave your comments below!