If we needed a timely reminder of Zooms powers and threat, we got one early on in Escape from Earth-2. Having finally realised that Harrison Wells and Co. would be holed up in the obvious, obvious, obvious location of S.T.A.R. Labs, the villainous speedster searches the facility for his foes. With Harry et al hiding up in Wells time vault, we got an awesome moment where Zoom actually phased through the wall and into the room. Sure, it would be revealed that Wells, Cisco and alternative Barry were hidden behind a faux wall, but this moment served as timely reminder of an oft-forgotten speedster power.