 Two guardian angels, Clarence and Miriam, watch the gang s Christmas holiday doings which include: the recovered Andrea and Brandon consider becoming intimate after Jay breaks up with Andrea by letter, and Nikki breaks up with Brandon by moving back to San Francisco. Brenda, Dylan and Kelly s love triangle trying a "mature" situation, which falls apart. David also decides to graduate early so he can be with Donna and the gang after his divorced mother moves to Portland. The mishap events lead to all of them on a bus bound for a Christmas Eve party for underprivileged kids, where disaster looms en route.