<P> Another technique used by American Dad ! is the story arc . On several occasions , a circumstance expands and progresses across a collection of episodes . As an example , one of Hayley 's temporary breakups with Jeff expanded across a string of episodes , in which she instead temporarily dated a black man in a koala body , Reginald Koala -- known for his very urban mannerisms and behaviors . As another example , since the 9th season episode `` Naked to the Limit , One More Time '' , Jeff Fischer has been absent from the Smith house and planet Earth altogether . In that episode , Jeff is blindsided when Roger hurls him into a spaceship . This spacecraft belongs to Roger 's race of aliens and was intended to return him back to his birth planet ; however , Roger remains behind after casting Jeff into the spaceship . The spaceship immediately takes off and Jeff is not seen until several episodes later , the episode `` Lost in Space '' . During episodes that aired between the two aforementioned episodes , allusions to the ongoing plot line are made . For example , in the episode `` Spelling Bee My Baby '' , Hayley is shown holding out hope for Jeff 's return . In the episode , Roger and Stan attempt to rush Hayley through her grieving process so she will be willing to be their tennis official . In the episode `` The Longest Distance Relationship '' Jeff gets in touch with Hayley via a radio and ultimately tells her not to wait for him and to move on with her life . This story arc is finally resolved in the episode `` Holy Shit , Jeff 's Back ! '' , Jeff supposedly returns to Earth but it turns out to be an alien called Zebleer masquerading as Jeff and the real Jeff has been dissected , however Jeff 's brain is transplanted into Zebleer 's body allowing the real Jeff to live , after which Stan and Hayley 's memories are wiped , leaving them unaware that Jeff is no longer entirely human . This plot point is continued at the end of `` Bahama Mama '' , where Roger mentions Jeff can not get Hayley pregnant because he has an alien body , so he agrees to rebirth Jeff in `` Roger 's Baby '' . By the end of the episode , Jeff is human again and with Hayley on Earth . </P>
<P> Another technique used by American Dad ! is the story arc . On several occasions , a circumstance expands and progresses across a collection of episodes . As an example , one of Hayley 's temporary breakups with Jeff expanded across a string of episodes , in which she instead temporarily dated a black man in a koala body , Reginald Koala -- known for his very urban mannerisms and behaviors . As another example , since the 9th season episode `` Naked to the Limit , One More Time '' , Jeff Fischer has been absent from the Smith house and planet Earth altogether . In that episode , Jeff is blindsided when Roger hurls him into a spaceship . This spacecraft belongs to Roger 's race of aliens and was intended to return him back to his birth planet ; however , Roger remains behind after casting Jeff into the spaceship . The spaceship immediately takes off and Jeff is not seen until several episodes later , the episode `` Lost in Space '' . During episodes that aired between the two aforementioned episodes , allusions to the ongoing plot line are made . For example , in the episode `` Spelling Bee My Baby '' , Hayley is shown holding out hope for Jeff 's return . In the episode , Roger and Stan attempt to rush Hayley through her grieving process so she will be willing to be their tennis official . In the episode `` The Longest Distance Relationship '' Jeff gets in touch with Hayley via a radio and ultimately tells her not to wait for him and to move on with her life . This story arc is finally resolved in the episode `` Holy Shit , Jeff 's Back ! '' , Jeff supposedly returns to Earth but it turns out to be an alien called Zebleer masquerading as Jeff and the real Jeff has been dissected , however Jeff 's brain is transplanted into Zebleer 's body allowing the real Jeff to live , after which Stan and Hayley 's memories are wiped , leaving them unaware that Jeff is no longer entirely human . This plot point is continued at the end of `` Bahama Mama '' , where Roger mentions Jeff can not get Hayley pregnant because he has an alien body , so he agrees to rebirth Jeff in `` Roger 's Baby '' . By the end of the episode , Jeff is human again and with Hayley on Earth . </P>
when does jeff come back to american dad
when does jeff come back to american dad
in the episode `` Holy Shit , Jeff 's Back ! ''
in the episode `` Holy Shit , Jeff 's Back ! ''