It's back to the main storyline in Naruto Shippuden episode 152!
With Naruto and the rest of Team Yamato back from their mission to help Hotaru, the Hidden Leaf Village receives grave news from an old friend. The sage comes bearing news of Jiraiya's death (way back in episode 133, The Gallant Tale of Jiraiya), and everyone in the village is in shock at the loss of the great hero. Naruto is hit especially hard by the death of his mentor, but his grief could cost the village dearly. Jiraiya's cryptic message about Pain has to be deciphered if the village ever expects to defeat the enigmatic Pain!
Watch Naruto Shippuden season 4, episode 152: "Somber News" on March 25th as the story gets back in gear!