Dangerous Liaisons (Part 2) is the twenty-second episode of the first season of 7th Heaven. It is also the season one finale. It aired on May 19th, 1997. It aired after Dangerous Liaisons (Part 1) and before Don't Take My Love Away.
Wilson West tells Eric that Billy is his son, unplanned but not unwanted, whose teenage mother died giving birth to the angel, which his parents help him raise.
Meanwhile, Dating privileges are maintained 'for observation'. Michael Towner bravely owes up being the one who accidentally hit Mary when she dashed after Annie, who realizes she's the guilty one but only tells off Matt's overprotective vindictiveness.
Elsehwere, sign language in a deaf-run restaurant helps Matt patch up with Heather.
Also, Jimmy Moon dumps Lucy on account of her endless hair wining.
To continue, Charles Jackson nearly lost hope Annie would turn round and Ginger imposed 'a break', but both women come to their senses after some surprising 'counseling' and fibs.
And finally, Mary is released home, but recovery up to basketball level is far from certain.