The Mod Squad (1968)

S03E07 Just Ring the Bell Once

The team steps in to help an 8-year-old boy living in an orphanage, who is unable to be adopted because his mother refuses to let him go. The cast includes Lukie, played by Brian Dewey; Linc, portrayed by Clarence Williams III; Velma Patch, played by Linda Meiklejohn; Pete, acted by Michael Cole; and Julie, played by Peggy Lipton.