donaldson returned to play for a third time in the 20th season, "", and was placed on the heroes tribe. he quickly became an outsider, after forming an alliance with ex-"" players tom westman and stephenie lagrossa, who were both eliminated within the tribe's first four tribal councils. donaldson also found less success than previously in the physical challenges, getting outclassed by benjamin "coach" wade. at the tribe's fifth elimination, donaldson was targeted as an outsider, but was ultimately spared by the tribe, instead voting out the injured james clement. donaldson and the rest of the heroes tribe won the last three immunity challenges before the merge. as a result, both tribes entered the merge with five members each. after villain parvati shallow gave hidden immunity idols to allies sandra diaz-twine and donaldson's "australian outback" tribemate jerri manthey, his own ally and fellow hero j. t. thomas was eliminated, giving the former villain tribe members the advantage in numbers. after thomas's elimination, all four remaining heroes were eliminated within the next five tribal councils, with donaldson being the last hero remaining in the final episode. ultimately, he was voted out on day 37 and became the eighth jury member. he cast his jury vote for the season's winner, diaz-twine, along with villain courtney yates and heroes tribemates, thomas, amanda kimmel, candice woodcock, and rupert boneham over shallow and russell hantz.