GR -GIANT ROBO- S01 E08 Qubit:08 - Doppelganger

At UNISOM's Nevada base, Daisaku is introduced to "Disaster:" a salvaged GR with a striking resemblance to GR-1. Daisaku is warned by V that the GRs shouldn't fight, but has no choice when GRO launches a full-frontal attack.