When Mary's next-door neighbor mysteriously goes missing, she and John start digging into the disappearance. During their investigation, John unexpectedly reunites with someone from his past. Carlos and Ada bond as they stakeout a potential lead for the demon's partner. Meanwhile, Latika taps into old folklore passed down from her family in hopes it helps Mary and John.

After the details of a veteran's death don't add up, Carlos brings everyone in to investigate and he shares a detail about his past that makes John see him in a new light. Mary finds an unexpected ally who has been hot on the trail of this monster and Latika tries to help Mary heal and find closure with someone she lost. Meanwhile, John's habit of running headfirst into danger leaves Millie worried for her son.

When Vampires make their way into Lawrence, Carlos corrals the gang to find out why. Latika's weeks of sorting through the Men of Letters clubhouse provides vital information when John gets a scary glimpse into the future and enlists Millie's help with his plan. Meanwhile, Mary struggles with the tedious balance between feelings and action when it comes to John.

While Carlos talks through a problem in his personal life, it gives Latika a new idea about how to find the Akrida Queen. Millie's new security system for the Clubhouse proves helpful when Mary and John find an unexpected guest inside. Meanwhile, Latika's idea brings her and Carlos face to face with an unexpected ally.