The sixth season opens with Kate, Webster and Mike becoming involved with the issue of latch-key children, when they give refuge to a little boy and his classmates, defying instructions from head office.
Kate helps a dying man cope with his condition; and Mike gets upset when Rosanna buys herself an engagement ring.
Webster takes some time off, so Kate's mother (Kate Reid) takes over at the centre. Things get difficult, though, when Kate decides she must fire her.
When Mike's grandmother dies after he places her in a nursing home, he blames himself and then Kate for giving him the idea; Kate deals with a young man who likes older women; Webster distracts everyone with her photo contest.
Kate's recently widowed sister arrives to sell her multi-million-dollar company and Kate tries to convince her to do the opposite.