diff --git a/index.js b/index.js
index 9e1b487..689507c 100644
--- a/index.js
+++ b/index.js
@@ -10,7 +10,22 @@ class Tree {
     this.root = node;
   }
 
-  findNode(data) {}
+  findNode(data) {
+    if (!this.root) return null;
+    let item = null;
+    let queue = [this.root];
+    while (queue.length) {
+      let item = queue.shift(); 
+      if (item.data === data) {
+        return item;
+      }
+      for (let child of item.children) {
+        queue.push(child);
+      }
+    }
+    return item;
+  }
 }
 
+
 module.exports = { TreeNode, Tree };