Who Checks Back in?; Head of Household #7; Nominations #7 (S04E15)

S04E01 Season Premiere; Head of Household #1 S04E02 Nominations #1; Veto #1; Live Eviction #1 S04E03 Head of Household #2; Nominations #2 S04E04 Veto #2 S04E05 Live Eviction #2; Head of Household #3 S04E06 Nominations #3 S04E07 Veto #3 S04E08 Live Eviction #3; Head of Household #4 S04E09 Nominations #4 S04E10 Veto #4 S04E11 Live Eviction #4; Head of Household #5 S04E12 Head of Household #6; Nominations #6 S04E13 Veto #6 S04E14 Live Eviction #6 S04E15 Who Checks Back in?; Head of Household #7; Nominations #7 S04E16 Veto #7 S04E17 Live Eviction #7; Head of Household #8 S04E18 Nominations #8 S04E19 Veto #8 S04E20 Live Eviction #8; Head of Household #9 S04E21 Nominations #9 S04E22 Veto #9 S04E23 Live Eviction #9; Head of Household #10 S04E24 Nominations #10 S04E25 Veto #10 S04E26 Double Eviction S04E27 Head of Household #12; Nominations #12 S04E28 Veto #12 S04E29 Live Eviction #12; Head of Household #13 S04E30 Nominations #13 S04E31 Veto #13; Special Eviction S04E32 Finale