When it came to logic, this part of Running to Stand Still felt a little off. With The Trickster having managed to get 100 explosive-laden presents in to unsuspecting homes, it seems as if the S.T.A.R. Labs team are powerless to stop a complete massacre. Luckily, Harrison, Jay and Cisco manage to come up with a scheme to locate one bomb, send it through one of the Earth-2 wormholes, and then apparently everything will be A-OK again. The logic here is that sending one bomb will trigger a magnetic reaction that will drag all of the other 99 bombs into the wormhole too. How the bombs manage to get through walls, windows and chimneys without exploding is a head-scratcher, and it also seems as if all of the bombs were pretty much housed on one single street. Of course, all was forgiven by this stretching of logic once Cisco proudly states, How do you like them magnets, bitch.