The New Adventures of Lassie (2014)

S1E23 Harvey's Journey

Harvey lost his father, a renowned rock climber, when he was just an infant. After a Park event stirs up his feelings of loss, Harvey decides to sneak away from the Valley to tackle the perilous climb to a secluded lake that his father cherished. Realizing where he might be headed, Zoe, Lassie, and Harvey's mother, Beth, set out to find him, worried about his safety. Ultimately, with Lassie's assistance and his own skills, Harvey reaches the tranquil lake and enjoys a heartfelt moment with the memory of his father.