The latest Smallville season 10 episode is entitled as "Beacon" which air date is on the 11th of February 2011 Friday night. It will surround with the superheroes and the VRA still but with Clark being so down because of the condition of his mother. I am thinking if the relationship of Oliver and Chloe will last as they return with each others arms after what had revealed on Smallville season 10 episode 12 - Collateral.
Now on the current episode, Lois and Clark is so surprised when they saw Martha Kent on TV talking against about the VRA which turns into a horrifying event when they saw her got shot in the middle of her speech. Here's the full synopsis of Smallville season 10 episode 13 - Beacon:
Martha returns to Metropolis to speak out against the VRA, but a sniper's bullet brings her down. With his mother in critical condition, Clark's friends try to cheer him up with videos showing Blur supporters. Meanwhile, the Earth-2 Lionel impersonates his dead counterpart and takes control of LuthorCorp back from Tess and Oliver.
The following video trailer shows a glimpse of what to happen next on the series.