![](https://image.tmdb.org/t/p/original/2sCuPk448pmNrUivRH5R9t9zy4T.jpg)
![](https://image.tmdb.org/t/p/w342/idpD7RzSNelzJqBBMFWZbzMfjUu.jpg)
Journey to the Center of TrollsTopia
When an underground river of lava threatens all of Rock Hollow, Poppy leads the Hard Rock Trolls deep under the earth to save the day.
![](https://image.tmdb.org/t/p/w300/iKmzTmuFyPCxrcBpD9UVbgOlYmU.jpg)
![](https://image.tmdb.org/t/p/w300/o8s36j8E0FyWyXVU0IhtaDJBXgp.jpg)
![](https://image.tmdb.org/t/p/w300/cOEgtAyKOktr3a9Uq7Zz8yTcS0G.jpg)
![](https://image.tmdb.org/t/p/w300/oxnRqdYkLdOyMHt2Hg2oiF2l8Om.jpg)
Other episodes for this season
![Bubbled In](https://image.tmdb.org/t/p/w300/6GdLrBgVTrRTzlvCaEWjiFmJcfz.jpg)
![Fastest Draw in the West](https://image.tmdb.org/t/p/w300/nKxu3SfMTYQpeMhAbbWTOfnKxJS.jpg)
![The Cloudback Whale](https://image.tmdb.org/t/p/w300/3itKnAxYZV9X5lX3SqvyhU8MxyW.jpg)
![Truffle Trouble](https://image.tmdb.org/t/p/w300/2sCvkEs0IxHlguXCZOR2Xd6x49H.jpg)
![Big Sis B](https://image.tmdb.org/t/p/w300/vWjoWehLLdYeFE2gnNBMHwDFeIO.jpg)
![Journey to the Center of TrollsTopia](https://image.tmdb.org/t/p/w300/2sCuPk448pmNrUivRH5R9t9zy4T.jpg)
![Race to the Crest](https://image.tmdb.org/t/p/w300/vTsI47iAjI5vSjQDZ60QZHrHR2t.jpg)
![What’s in a Nickname?](https://image.tmdb.org/t/p/w300/paOB185QB8EgxokNkgUlAiNd3xR.jpg)
![Ready, Set, Calendar!](https://image.tmdb.org/t/p/w300/mrbjoy2pyRFUgvR3K0X4d9UNHJQ.jpg)
![The Party Switcheroo](https://image.tmdb.org/t/p/w300/oFtRJJeX78HA6TDRpmSDJ3WOsno.jpg)
![Keep It Up](https://image.tmdb.org/t/p/w300/nzl67XSj5sY3dnuRVxEpirxD0dH.jpg)
![Be My Val in Time](https://image.tmdb.org/t/p/w300/zfa8UU8US9F0vxyvGScbhmdlTeV.jpg)
When an underground river of lava threatens all of Rock Hollow, Poppy leads the Hard Rock Trolls deep under the earth to save the day.