[s2e5] While You Were Away -

If you are referring to the series starring Shaun Chen and Yvonne Lim :

: The story follows He Zi Jun, whose "perfect" life falls apart after his wife, Wu Shen Mei, falls into a coma and he discovers she was hiding numerous family secrets, including their son's Asperger's syndrome. [S2E5] While You Were Away

: Rook's younger brother, Young One, arrives on Earth in a harvester, leading Ben and Rook back to Revonnah only to find it has been invaded by the Incurseans . If you are referring to the series starring

: The Incurseans, led by Princess Attea and aided by Dr. Psychobos , use a mind-control substance to enslave the planet's population. Psychobos , use a mind-control substance to enslave

The request regarding "[S2E5] While You Were Away " typically refers to the episode , though "While You Were Away" is technically the eighth episode of Season 3, not Season 2. If you are looking for information on a 2019 Singaporean drama titled While You Were Away (一切从昏睡开始), it originally aired as a single-season 20-episode series and does not have a "Season 2 Episode 5". Ben 10: Omniverse Details

: In the early episodes of this 20-episode run, Zi Jun begins to unearth the facades created by his wife while she remains incapacitated. While You Were Away (TV Series 2019) - IMDb

In this episode, the plot centers on and Ben Tennyson traveling to Rook's home planet, Revonnah.