Lassie is a Canadian television series which aired from 1997 to 1999 on YTV in Canada and Sunday nights on the Animal Planet network in the United States, as a modified remake of the original Lassie series about a boy and his faithful dog. As with previous Lassie TV versions and several movies dating back to the original Lassie Come Home movie of 1943, the star was Lassie, a trained Rough Collie.

Not to be confused with a previous, syndicated follow-up series entitled The New Lassie which aired 1989–1991, this Canadian-produced Lassie series starred Corey Sevier as 13-year-old Timmy Cabot in the fictional town of Hudson Falls, Vermont. The show was filmed in Quebec by Cinar Inc.. In this series' story line, Timmy and his recently widowed mother, Dr. Karen Cabot, move to Hudson Falls, where Karen takes over a veterinary practice.

In the first season, Lassie was played by "Howard", an eighth generation collie descended from "Pal", the dog in the original 1943 movie Lassie Come Home. As with all previous Lassie movies and television series beginning with Pal, Howard was owned and trained by Weatherwax Trained Dogs, founded by brothers Frank and Rudd Weatherwax. Midway through production, Cinar replaced Howard with a non-Pal descended dog. Following Lassie fan protests, "Hey Hey", son of Howard and a ninth-generation direct descendent of Pal, was brought in to assume the role of Lassie for the final thirteen episodes of the show.

Karen Cabot volta para sua cidade natal com seu filho Timmy. Lá, ela dirige uma clínica veterinária. Timmy, o filho dela, encontra um cachorro. Ele a chama de Lassie, e eles se metem em todos os tipos de situações.

Après le décès de son père, Timmy Cabot, 13 ans, suit sa mère à Hudson Falls où celle-ci prend la direction d'un cabinet vétérinaire. Timmy fait la rencontre de Lassie, une jeune chienne fidèle, qu'il décide d'adopter.

A film egy yorkshire-i bányászfaluban élő kisfiúról és hűséges kutyájáról szól. Mivel nehéz idők járnak a Carraclough családra, kénytelenek eladni szeretett skótjuhász kutyájukat, Lassie-t Rudling hercegének. Lassie-t gazdáitól ötszáz mérföldre, a Skócia északi partjainál álló hercegi kastélyba szállítják, ahonnan csodával határos módon megszökik. Így kezdődik a Nagy-Britannia csodaszép tájait átszelő, hihetetlen utazás, amelynek során Lassie számtalan veszéllyel néz szembe, hogy átkelhessen az országon, és időben hazatérjen karácsonyra.