Season 19 · Episode 4

The Bachelor: Week 4

Chris' three sisters will pick the lucky bachelorette to go on a special one-on-one date with their brother. A beautiful beach day at Lake Piru in the mountains of Southern California turns up the heat at a group date, as one woman jumps in without her bikini top and - not to be outdone - another takes off her bikini bottom. The day at the lake turns into camping out and spending the night there. One aggressive woman shares some surprising news with Chris, but will it make a difference in how he views her as a potential soul mate? Chris gets "down and dirty" with six bachelorettes as they travel to San Francisco to participate in a grueling mud run - in wedding dresses. The cocktail party leads to more revelations and confrontations, as one woman questions Chris' motives for being here and he, in return, delivers a blunt message to the rest of the bachelorettes.