"Time Squad" is a pretty strong episode in Blake's 7's run, setting up what resembles more of a format for the series' episodes, while still maintaining the sense of dramatic uncertainty that has distinguished the episodes so far. That continued real sense of danger and unreliability - - from the crew itself towards each other and Blake, from Zen, and from the mysterious capsule in distress, is the best quality of this episode. The character of Cally is given an interesting, brief introduction that piques the curiosity about future development.
There's a double plot here, though, one about the mysterious capsule and one about Blake's attempt to blow up a Federation communications centre. The running time doesn't allow them both enough time to develop, and the terrorist escapade consequently seems more perfunctory than it ought to. Such a dangerous and potentially crippling strike ought to have a fairly huge impact, but it ends up seeming like a subplot.
There are some interesting developments for Gan, but David Jackson didn't impress me with his acting here as much as the rest of the cast; his implant-induced conflictedness about killing came across as a bit forced in performance. It's only second episode for the teleport, but already there have been three dangerous situations created by problems bringing people back over it; it makes one wonder if that will become a stock situation.