Slo-Mo was a production worker until she discovers an AllSpark Fragment in the clock. She later used the Allspark Fragment to be a villain. She used the AllSpark to help Detroit's villains to escape from the Autobots. She gathered Detroit's villains into the her clock cave to form a supervillain group. Slo-Mo told the group about the AllSpark Fragment and how it negated Nanosec's aging. This caused a relationship between the two. They later stole technology for a Decepticon. The Decepticon Swindle stole Slo-Mo's fragment. The group was later arrested.