Alison is unsure about whether her romance will continue, Edward faces reality, and Charlotte ponders her future.
Tensions mount for Charlotte when Colbourne and Colonel Lennox finally reunite at Lady Denham's annual Garden Party, and Edward attempts to exploit Clara's predicament for his own ends.
Colbourne asks Charlotte to keep away from Lennox, but hopes she will stay at Sanditon, and Alison realises what she has been missing.
