Conversation so far:
What was two super girl's meet?
Prior to the post-Crisis introduction of Kara Zor-El into mainstream continuity, the pre-Crisis Kara Zor-El made.
What was Kara role in Super girls Meet?
Supergirl.

Question: What was the story-line of the show?
Self-contained rewrite: What was the story-line of Two Supergirls meet?