Island Theatre celebrates its 20th anniversary with a powerful lineup of must-see performances. Here’s the 2015 season schedule:

“Humble Boy,” 7:30 p.m. on April 16, 17, 18, 19, 24, 25 and 26 at Rolling Bay Hall.

Borrowing liberally from “Hamlet,” this nimble and offbeat comedy set in an English garden estate introduces a socially awkward scientist who deftly links the cosmology of bees to black holes, but cannot fathom the mysteries of love and family.

“An Enemy of the People,” 7:30 p.m. on June 21 and 22 at the Bainbridge Public Library.

Dr. Thomas Stockmann is a medical officer charged with inspecting the public baths on which the prosperity of his native town depends. He finds the water to be contaminated. When his brother, the mayor, conspires with local politicians and the newspaper to suppress the story, Stockmann appeals to the town’s citizens at a public meeting–only to be shouted down and reviled as “an enemy of the people.” Ibsen’s explosive play, written in 1882, reveals his distrust of politicians and the blindly held prejudices of the “solid majority.”

“The Fourth Annual Island Theatre Ten-Minute Play Festival,” 7:30 p.m. on Aug. 21 and 22 at Bainbridge Performing Arts.

Up to 10 plays, written by Kitsap County playwrights and selected by a panel of theatre professionals, will be performed both evenings.

“Copenhagen,” 7:30 p.m. Oct. 17 and 18 at the Bainbridge Public Library.

This Tony Award-winning play dramatizes the disastrous 1941 meeting between German physicist Werner Heisenberg and his former colleague and friend, Danish physicist Nils Bohr, on the Nazi’s efforts to produce the atomic bomb.

“Season’s Greetings,” 7:30 p.m. Dec. 19 and 20 at the Bainbridge Public Library.

An uncompromising portrait of a traditional family Christmas in which culinary disasters, drunkenness, neglected wives, infidelity under the tree and an amorous Santa create a sparking bittersweet comedy and a riotously funny take on the festive season.