Week 4: Camping

S19 E4: This week, the Bachelor's three sisters will pick the lucky bachelorette who will 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 on 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 evening and the group camps out to spend 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? Then 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's motives for being there and he, in return, delivers a blunt message to the rest of the bachelorettes.