The Last Song first aired on October 23, 1980 on CBS. It is about a woman whose husband is murdered when he accidentally discovers wrongdoing at a toxic waste plant. His wife, played by Lynda Carter, finds tapes that he hid before his death, and now she is a target of the murderers. And in true 70’s tv style, there’s a helicopter chase scene!
Wikipedia
https://en.wikipedia.org/wiki/The_Last_Song_(1980_film)
Made-for-tv-movie Fandom Wiki:
https://made-for-tv-movie.fandom.com/wiki/The_Last_Song
IMDB:
https://www.imdb.com/title/tt0081035/
https://www.imdb.com/name/nm0004812/?ref_=tt_cl_t1
https://www.imdb.com/name/nm0001074/?ref_=tt_cl_t2
https://www.imdb.com/name/nm0699425/?ref_=tt_cl_t3
https://www.imdb.com/name/nm0524747/?ref_=tt_cl_t7
Lynda Carter Wiki: