Harry yells at Lucy because her phone is always busy, but this is due to having two teenagers who are constantly making phone calls. The kids persuade Lucy to get them their own phone lines if they earn the money to pay for them.
The kids acquire part-time jobs to pay for the new phones. Kim is hired to babysit for a pet store and Craig gets a job blowing up balloons and gluing wings on toy airplaces. Lucy ends up filling in for both of them with the multiple jobs that they acquire including various exotic animals.