Heartbeat: Little White Lies

SYNOPSIS

The police search for a boy who went missing after discovering his mother was having an affair. Younger strikes up an unlikely friendship as he fills in for the local lollipop lady, while Walker finds he isn't over Helen during a date with one of Gina's friends, and Carol's fiance Frank gets time off from the Navy to visit her. Sixties-set drama, with Jonathan Kerrigan and Lisa Kay.