Carlos and Gaby take Xiao-Mei, a former slave who's in danger of being deported, in as a maid.  Susan discovers she doesn't have health insurance and Karl agrees to secretly remarry her so she can use his.  Bree sneaks into Betty's home to talk to Caleb and later learns from Betty how he murdered Melanie Foster.  Lynette is dismayed to see Ed taking advantage of Tom at the office.  Noah Taylor, Zach's grandfather, demands that Mike brings him by.