Episode 20 is good. Last time Lockon took a hit meant for Virtue and got injured. The UN and the world is serious about eliminating the Gundams. In this episode we see the Throne Gundams are essentially wiped out and Veda is completely compromised.
The result of this is that the real Gundams from Celestial Being (not the Throne knock offs) were unlocked. Setsuna drives the new Gundam like Cloud Strife at the end of Final Fantasy VII: Advent Children. All that is missing is a Sephiroth like character and the scene would be complete.
The action is getting good. With only one Trinity Gundam pilot left alive, I wonder how Celestial Being will re-group?